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【单选题】
扣件式钢管脚手架的构造中，关于大横杆的对接、搭接应符合的规定有误的是（ ）。A.
搭接长度应小于lm，应等间距设置3个旋转扣件固定
B.
当使用竹笆脚手板时，大横杆应用直角扣件固定在小横杆上
C.
大横杆的对接扣件应交错布置，不同步不同跨两相邻接头在水平方向错开的距离不应小于500mm
D.
大横杆的对接扣件应交错布置，各接头中心至最近主节点的距离不宜大于纵距的2／3
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【单选题】--- I use your mobile phone ? ---Sorry , you can't . My phone is powered off.
A.
Need
B.
Must
C.
May
D.
Should
【单选题】字数:127 建议做题时间:1分钟 One important caution about fake foning. The other day I was fake foning my way past a colleague, and he was actually following me to get my attention. I knew he wanted to ask ...
A.
One effective way is to fake fone one’s doctor.
B.
One has to be careful while fake foning.
C.
Fake foning may not deceive people.
D.
Fake foning is always quite successful.
【单选题】If I don't take my cell phone, and I need to make a call.
A.
complete sentence
B.
fragment
【简答题】Oh, sir, I need to make a phonecall, but my phone is out of charge. _________________ if I use yours?A. Is it nice with you B. Is it OK with you C. Is it OK with me
【单选题】Stop using your phone. You need to be an open person, with open body language and open eyes and without a shield (盾). But my phone often gets between me and the surroundings. It ruins my chances to ma...
A.
It began to rain
B.
Let strangers make all your plans
C.
When you're watching somebody
D.
I will share with you my experience
E.
If stopping using it feels unsafe to you
F.
Never feel afraid of the strangers you meet
G.
I replied I was on a trip, looking for scenic spots
【简答题】简述十进制系统。为什么称作decimal？该系统的底是多少？
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