当给水泵勺管往下移时，给水泵的转速降低。-我要搜题网

[简答题]Many people are concerned about the economic condition of developing countries — countries whose average per capita GNP is a fraction of that in more industrialized countries. However, for the developing countries, there exist many obstacles to their economic development.
One major obstacle to economic development is population growth. (46) The populations of most developing countries grow at a rate much faster than those of industrialized countries, and the population of some of them is so large that there is barely enough fertile land and other resources to support it. Many less developed countries depend extensively on agriculture, adding to the problem. In these countries, an incentive to have many children exists. (47) Most farms are worked by families, and children can work in the fields at an early age because most farmers believe that more children means more workers. In addition, having many children ensures the parents that someone will look after them in t

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[填空题]“脍炙人口”的“炙”字的拼音是（）。

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[单选题]轨枕类型和配置根数标准规定，Ⅱ级铁路货物列车设计行车速度≤80km/h正线上，新Ⅱ型混凝土枕应铺枕（）根/km。
A.A.1600
B.B.1667
C.C.1600～1760
D.D.1760

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[判断题]在推手中，要求以静制动、以柔克刚、避虚击实、借力发力。

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[判断题]( )十进制数的计数规则是逢十进一。
A.正确
B.错误

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[单项选择]患者男性，36岁。两天前受凉后出现咽干、咽痛、打喷嚏、鼻塞、流涕、食欲减退等症状。患者有消化道溃疡病史。下列药物患者禁用的是（）
A. 金刚烷胺
B. 阿司匹林
C. 利巴韦林
D. 板蓝根冲剂
E. 银翘解毒片

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[单选题]端门玻璃破裂故障，说法正确的是（）。
A.站务人员立即按压紧停，行调组织电客车限速25km/h至应急处理完毕，电客车限速后取消紧停
B.站台岗关闭端门
C.完成破裂玻璃粘贴后，保持故障端门开启并固定，操作相邻滑动门LCB到“开门”位
D.应急处理完毕后电客车限速60km/h

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[单选题]AC014 加氢精制中含硫、含氮、含氧等非烃化合物与氢发生氢解反应,分别生成相应的烃和硫化氢、( )和水。
A.胺
B.氨
C.铵盐
D.氨水

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[判断题]苏建规字（2020）6号文件，按照“放管服”的改革要求，对于小型项目，招标人宜采用抽签、摇号等方式直接确定中标候选人。
A.正确
B.错误

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[单选题]在窗体上画一个名称为Label1、标题为"VisualBasic考试"的标签,两个名
称分别为Command1和Command2、标题分别为"开始"和"停止"的命令按钮,
然后画一个名称为Timer1的计时器控件,并把其Interval属性设置为500.
编写如下程序:
Private Sub Form_Load()
Timer1.Enabled = False
End Sub
Private Sub Command1_Click()
Timer1.Enabled = True
End Sub
Private Sub Command2_Click()
Timer1.Enabled = False
End Sub
Private Sub Timer1_Timer()
If Label1.Left < Width Then
Label1.Left = Label1.Left + 120
Else
Label1.Left = 0
End If
End Sub
程序运行后,单击"开始"按钮,标签在窗体中移动.
对于这个程序,
以下叙述中错误的是().
A.标签的移动方向为自左向右
B.单击"停止"按钮后再单击"开始"按钮,标签从停止的位置继续移动
C.当标签全部移出窗体后,将从窗体的另一端出现并重新移动
D.标签每隔1秒移动一次

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[单项选择]关于儿童身高发育的叙述，下面哪项是不正确的（）
A. 遗传对儿童身高的影响主要通过多个等位基因、功能基因来实现
B. 小儿出生身长与父母身高关系明显
C. 体育锻炼对身高发育有正向促进作用
D. 疾病会影响小儿身高发育
E. 铅中毒对小儿身高发育有一定影响

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[单项选择]肺静脉畸形引流，无下列哪项征象（）
A. 肺血增多
B. 右心房、室增大
C. 肺动脉段突出
D. 雪人征
E. 左心室增大

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[单项选择]引进浅冷装置恒温阀的毛细管损坏会造成（）。
A. 寒冷天气里经常排气
B. 无排放气
C. 冷却盘管的入口管线结霜
D. 无排放气

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[填空题] 普法责任制的要求是()。

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[单项选择]

Once upon a time a poor farmer taking a sack of wheat to the mill did not know (56) to do when it slipped from his horse and fell (57) the road. The sack was (58) heavy for him to (59) , and his only hope was that (60) some one would come riding by and (61) a hand.
It was not long (62) a rider appeared, but the farmer’ s heart sank when he (63) him, for it was the great man .who lived in a castle nearby. The farmer (64) have dared to ask (65) farmer to help, or any poor man who might have come (66) the road, but he could not beg a (67) of so great a man. (68) , as soon as the great man came up he got (69) his horse, saying "I see you’ ve had bad luck, friend. How good it is (70) I’m here just at the (71) <
A. when
B. which
C. then
D. that

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[多选题]下列设备( )属于特种设备。
A.电梯
B.锅炉
C.压力容器
D.工业气瓶

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[单项选择]患者，女性，40岁。因车祸外伤急诊入院。患者神志清楚，面色苍白，血压80／50mmHg，考虑患者血容量不足，需要补充液体，应输入的溶液是（）
A. 5%碳酸氢钠溶液
B. 脂肪乳剂
C. 20%甘露醇溶液
D. 右旋糖酐-70
E. 白蛋白

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[多选题] 计算机中的辅助存储器有()。
A.RAM
B.可刻录光盘
C.硬盘
D.软盘
E.闪存盘

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[单选题]药物炮制的最终目的是
A.缓和或改变药性
B.降低毒性
C.提高药物净度
D.使药物发挥最大的疗效
E.有利于制剂

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[判断题]当给水泵勺管往下移时，给水泵的转速降低。

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