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【单选题】
关系代数中,从两个关系中找出相同的运算称为()运算。A.
并
B.
交
C.
差
D.
合
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【单选题】听力原文：M: Could you keep that noise down, Lily? I'm trying to listen to the recording. W: Sorry, it's not me. There is a party downstairs. Q: What does the woman imply? (18)
A.
She will do something about the noise.
B.
She will turn off her recorder.
C.
She is not responsible for the noise.
D.
She wants the man to use earphones.
【简答题】金属汞易挥发,吸入体内易引起慢性中毒,一旦把汞洒落在桌面或地上,必须尽可能收集起来,并用( )盖在洒落的地方,使汞变成不挥发的( )。
【简答题】按照FIDIC合同第25款的规定若承包商未投保时（）
【简答题】按照 FIDIC 合同第 25 款的规定若承包商未投保时业主有权 。
【单选题】Lily is a life coach. Listen and chose the things a life coach does.
A.
tells people what to do
B.
sets goals
C.
is good at listening
【简答题】按照FIDIC合同第25款的规定若承包商未投保时业主有权（）
【多选题】Listen to the conversation again and check (√) the suggestions given by Lily.
A.
Do more cooking at home.
B.
Buy discounted food at supermarkets after 4 p.m.
C.
Dine at a restaurant.
D.
Get fruits and vegetables by using coupons at supermarkets.
E.
Buy some store brand food.
F.
Find a part-time job at a supermarket.
G.
Try free samples at supermarkets.
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