限制性内切酶的酶解反应最适条件各不相同，大多数酶切缓冲液最适反应温度为-我要搜题网

The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise. Millions of individuals became (1) in a variety of aerobic activities, and (2) thousands of health spas (3) around the country to capitalize on this (4) interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed (5) to this aerobic fitness movement, even a national chain with spas in most major cities. However, their (6) was not on aerobics, (7) on weight-training programs designed to develop muscular mass, (8) , and endurance in their primarily male (9) . These fitness spas did not seem to benefit (10) from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs (11) few, if (12) , health benefits. In recent years, however, weight training has again become increasingly (13) for ma
A. popular
B. vigorous
C. intelligible
D. formidable

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[单项选择]从病因角度讲，不属于妊高征好发因素的是
A. 葡萄胎
B. 多胎妊娠
C. 糖尿病
D. 初产妇
E. 母儿血型不合者

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[多选题]子宫是孕育胚胎、胎儿和产生月经的器官，以下关于子宫解剖与生理的叙述错误的是( )。 A.成年妇女非孕期子宫长7～8cm，宽4～5cm，厚2～3cm，容量约5ml B.子宫峡部在非孕期长约1cm，妊娠末期都超过11cm，成为软产道的一部分 C.子宫颈以阴道为界分为上下两部分，上部占宫颈1/3，下部占2/3，深入阴道内称子宫颈阴道部 D.子宫内膜表面2/3为致密层和海绵层，受卵巢激素影响发生周期性变化而脱落
A.A
B.B
C.C
D.D
E.E

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[判断题]高处作业现场安全隐患分为高处坠落、触电事故和物体打击三大类。
A.正确
B.错误

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[判断题]发动机熄火前,可以加注燃油( )
A.正确
B.错误

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[多选题][多选]下列关于扣件式脚手架基本要求叙述正确的是（）。
A.必须设置纵、横向水平杆和立杆
B.脚手架立杆基础必须坚实，并有足够承载力
C.应设置纵向剪刀撑和横向斜撑
D.脚手架要有足够的纵向和横向整体刚度
E.必须按设计要求布置足够数量、分布均匀的连墙件

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[单项选择]Blue jeans are probably the single most representative article of American clothing．They were originally 26 by Jacob Davis，a tailor from Nevada， 27 ，together with dry-goods sales man Levi Strauss，patented the idea as 28 clothing for miners in l873．Blue jeans，also 29 as work clothing，spread among workers of all kinds in the late l9th and early 20th centuries， 30 among cowboys，farmers，loggers，and rail road workers．During the 1950s， 31 Marion Brando and James Dean made blue jeans 32 by wearing them in movies，and jeans be。came part of the 33 of teenagers’rebelling．In the l960sand 1970s，this fashion statement exploded as LevI’s 34 a fundamental part of the youth 35 focused on both civil rights and antiwar protests． 36 the late1970s，almost everyone in the United States wore blue jeans, 37 youths all around the world sought after them． 38 designers began to create more complicated 39 of blue jeans and to 40 their fit，jeans began to express the American emphasis 41 informality and the importan
A. took
B. played
C. had
D. became

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[单项选择]以下程序的运行结果是（）
int k=0;
void fun(int m)
m+=k; k+=m; printf(”m=%d k=%d”, m, k++);
main（　）
int i=4;
fun(i++); printf("i=%d k=%d/n", i, k);

A. m=4 k=5 i=5 k=5
B. m=4 k=4 i=5 k=5
C. m=4 k=4 i=4 k=5
D. m=4 k=5 i=4 k=5

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[单项选择]对于总价合同，如果在施工过程中施工内容和有关条件不发生变化时，业主支付给承包商的价款额是（）。
A. 合同总价格加不可预见风险因素
B. 合同总价格加法律风险因素
C. 合同总价格加政策风险因素
D. 合同总价格

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[单选题]下承式桁梁的端横梁与纵梁连接处下端裂纹长度（）mm，应及时处理。
A.≥20
B.≥30
C.≥50
D.≥80

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[判断题]法人机构可以利用贴现资金办理还旧借新,以调节信贷质量指标。(0.24分)
A.正确
B.错误

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[判断题]每次带电水冲洗前都应用合格的水阻表测量水电阻率，应从水枪进口处取水样进行测量。
A.正确
B.错误

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[不定项选择题]共用题干 A Lucky Break
Actor Antonio Banderas is used to breaking bones,and it always seems to happen when he's______(1) sport.In the film Play It to the Bone he______(2) the part of a middleweight boxer alongside Woody Harrelson.______(3)the making of the film Harrelson______(4) complaining that the fight______(5)weren't very convincing,so one day he suggested that he and Banderas should have a fight for real.The Spanish actor wasn't______(6)on the idea at first,but he was______(7) persuaded by his co-star to put on his gloves and climb into the boxing ring.However,when he realized how seriously his______(8) was taking it all,he began to regret his decision to fight.
And then in the third round,Harrelson hit Banderas______(9)hard in the face that he actually broke his nose.His wife,actress Melanie Griffith,was furious that he had been playing“silly macho games”.“She was right,”confesses Banderas,“and I was a fool to______(10)a risk like that in the middle of a movie.”
He was______(11)of the time he broke his leg during a football match in his native Malaga.He had always______(12)of becoming a soccer star,of performing in front of a big crowd,but doctors told him his playing days were probably over.“That's when I decided to take______(13) acting；I saw it as______(14)way of performing,and achieving recognition.What happened to me on that football______(15)was,you might say,my first lucky break.” 3._________
A.When
B.As
C.While
D.During

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[简答题]井架工发现溢流应向谁汇报？

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[判断题]安防系统摄像机修程为故障修。
A.正确
B.错误

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[单项选择]胚胎性肿瘤是（）
A. 癌
B. 肉瘤
C. 母细胞瘤
D. 精原细胞瘤
E. 霍奇金病

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[填空题]Questions 1-5
Reading Passage 1 has five sections, A-E.
Choose the correct headings for sections A-E from the list of headings below.
Write the correct number, i-ix, in boxes 1-5 on your answer sheet.

List of Headings

i Mushrooms that glow in the dark
ii Bright creatures on land and in the sea
iii Evolution’s solution
iv Cave-dwelling organisms
v Future opportunities in biological engineering
vi Nature’s gift to medicine
vii Bioluminescence in humans
viii Purposes of bioluminescence in the wild
ix Luminescent pets

Section C

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[单项选择]限制性内切酶的酶解反应最适条件各不相同，大多数酶切缓冲液最适反应温度为（）
A. 28℃
B. 37℃
C. 42℃
D. 56℃
E. 65℃

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[单项选择]限制性内切酶的酶解反应最适条件各不相同，大多数酶切缓冲液最适反应温度为（）A. 28℃B. 37℃C. 42℃D. 56℃E. 65℃

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[单项选择]限制性内切酶的酶解反应最适条件各不相同，大多数酶切缓冲液最适反应温度为（）
A. 28℃
B. 37℃
C. 42℃
D. 56℃
E. 65℃