(1)中段圆锥体部分的定形尺寸为______和______；
(2)圆锥体上开槽的定形尺寸为_____；
(3)的定位尺寸为_____；
(4)总体尺寸为_____、_____和_____。
唐朝是丝绸生产的______时期，无论产量、质量和种类都达到了前所未有的水平。丝绸的生产组织分为宫廷手工业、农村副业和独立手工业三种，______较前代大大扩大了。
依次填入画横线部分最恰当的一项是（）。
| Why don’t birds get lost on their long
flights from one place to another Scientists have puzzled over this question
for many years. Now they’re beginning to fill in the blanks. Not long ago, experiments showed that birds rely on the sun to guide them during daylight hours. But what about birds that fly by night Tests with artificial stars have proved that certain night - flying birds are able to follow the stars in their long- distance flights. A dove (鸽子)had spent its lifetime in a cage and had never flown under a natural sky. Yet it showed an inborn ability to use the stars for guidance. The bird’s cage was placed under an artificial star-filled sky. (76) {{U}}The bird tried to fly in the same direction as that taken by his outdoor cousins.{{/U}} Any change in the position of the artificial stars caused a cha A. birds should be taught to navigate B. a dove that has been caged will not fly long distances C. some birds cannot fly at night D. some birds seem to follow the stars when they fly at night [单选题]下列国际结算方式中，不具有融资功能的是（ ）。
A.托收 B.信用证 C.汇款 D.票据 [单选题]Mary:How do you like the idea of having a picnic this Saturday?
John:Wonderful．But?56？
Mary:What about the Blue Mountain?It′s quite cool there．
John:That′s a good idea．Shall we invite Michael and his girlfriend to go with us?
Mary:Sure!It would?57?to have them with us．
John:Good!58？
Mary:You could buy some drinks and sandwiches．And some fruit,too．
John:OK．59？
Mary:How about 8 o′clock in the morning?It takes about two hours to get there．
John:OK．I′ll call Michael and tell him about our plan．We sure will?60．
第57题的答案是()
A.When shall we set off B.What is the time C.have a wonderful time D.start packing E.be great fun F.What could I get G.What should I take H.where to [单选题]总体目标包括、一个平台、两个服务、()
A.三个提升 B.三个创新 C.三个准测 D.三个标准 [单选题]衰耗盘上测试“小轨输出”电压，测试标准应在()mA。
A.100 B.100-120 C.120 D.110 [单选题] 所谓正形投影、也就是等角投影。( )
A.对 B.错 [多项选择]培训教材开发的新趋势是指（）。
A. 教材研发无纸化趋向 B. 教材多媒体化趋向 C. 教材密度增强化化趋势 D. 教材结构模块化趋向 E. 网络教学及网上教材趋向 [判断题]当“禁止吸烟”信号灯亮时或者“禁止吸烟”标牌出示时,不得在客舱内吸烟,驾驶舱除外。( CCAR-121第317条(g)款(1)
A.正确 B.错误 [简答题]Little区
[多项选择]入境动物及动物产品的报检范围为( )
A. 入境的动物 B. 动物产品 C. 其他检疫物 D. 大宗货物 [填空题]中暑分为<--NRC-->中暑、轻症中暑、重症中暑和多人（3 人及以上）中暑。
[判断题]李某与王某有仇，遂伺机报复。一日，李某得知王某一人在家，便携带匕首向王某家走去，刚到王某家门口突然腹痛难忍，只得返回家中，李某的行为属于犯罪未遂，可以比照既遂犯从轻或者减轻处罚。
[单选题]人类的主要造血器官是：（）
A.心脏 B.骨髓 C.脊髓 D.大脑 [判断题]链篦机系统启停车操作中，确认链篦机系统工作制在“自动”位置，并从电脑操作界面菜单上确认该系统允许启动。（）
A.正确 B.错误 [多项选择]在各行各业现实实践中经常会遇到的统计数据有（）。
A. 职工人数 B. 职工工资总额 C. 压力 D. 合格品率 [简答题]社会资本扩大再生产的前提条件和实现条件是什么？
[判断题]非转移型等离子弧:电极接电源正极,喷嘴接负极,而零件不参与导电。电弧是在电极和喷嘴之间产生。 ( )(中)
A.正确 B.错误 [判断题]程序在并发执行时，只要程序执行时的环境和初始条件相同，当程序重复执行时，都将获得相同的结果。
A.正确 B.错误 我来回答: 提交
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