【单选题】The length, cross-sectional area, constraint states and material of the two slender columns a and b are the same. Assume the cross-sections of the two columns are square and circular, respectively, wh...
【单选题】在窗体中添加两个文本框(其Name属性分别为Text1和Text2)和一个命令按钮(Name属性为Command1),然后编写如下两个事件过程: PrivateSubCommand1_Click() a=UCase(Text1.Text)+Left(Text2.Text,2) Printa EndSub PrivateSubForm_Load() Text1.Text="Ab" Text2.Tex...
【单选题】There are ______ pages in this book.
A.
two hundred and forty-five
B.
two hundreds and forty-five
C.
two-hundred and forth-five
【简答题】在窗体上添加两个文本框和一个按钮,在按钮的单击事件中添加如下代码: Private sub command1_Click( ) Text1='vba test' Text2=text1 Text1= 'test end' End sub 单击按钮后,text2中的文本内容是【 】。
【单选题】王某,车祸后经抢救一直处于昏迷状态,医嘱:50%葡萄糖溶液500ml静脉滴入。10. 输入50%葡萄糖的目的是 以下有关叙述不正确的是
【单选题】The distance between the moon and the earth is ______ .
A.
a bit more than two hundred and forty thousand miles
B.
a little less than two hundred and forty thousand miles
C.
about two thousand one hundred and sixty miles
D.
about eight thousand miles
【简答题】A.Twenty-nine days. B.Two and a halfmonths. C.Several minutes. D.Four hours.
【多选题】下列有关化工管路布置说法中,正确的是 _________ .
A.
安排管路时,应保证管路与墙壁、柱子、场面、其他管路等之间有适当的距离,并尽量采用标准件
B.
输送有毒或有腐蚀性介质的管道,不得在人行道上空设置阀体、伸缩器、法兰等,若与其他管道并列时应在内侧或上方安装
C.
易燃易爆及有毒介质的放空管应引至室外指定地点或高出层面1m以上
D.
对于温度变化较大的管路要采取热补偿措施,有凝液的管路要安排凝液排出装置,有气体积聚的管路要设置气体排放装置
E.
长距离输送蒸汽的管道要在一定距离处安装疏水阀,排除冷凝水