更多"[单选题]-I' m sorry l broke your mirro"的相关试题:
[单选题]-- I'm sorry l broke your mirror.-. Oh, really? ______
A. It doesn't matter
B. Don't be sorry
C. Not at all
D. It's OK with me
[单选题]- I am terribly sorry! I broke the vase. ______
A. I don't want it
B. Don't worry.
C. You meant to do it.
D. You buy one for me.
[单选题]- I'm afraid I can't go to your party,I have an important exam tomorrow. ______
A. What a pity
B. With pleasure
C. No problem
D. Mind yourself
[单选题]-I'm engaged! -____on your engagement!
A. Congratulations
B. Pleasure
C. Welcome
D. Cheers
[单选题]-I'm sorry to trouble you. Can l borrow a pen, please? ______
A. Yes, you can
B. Certainly! It is here
C. She's welcome
D. Thank you
[单选题]I wonder if I could use your computer tonight?
______, I’m not using it right now.
A. sure, here you are.
B. I don't know.
C. It doesn't matter.
D. Who cares?
[简答题]有一段排水管道长度L为1000m,其坡降△h为0.3m,则此段管道的铺设坡度I是多少?
解:I=△h/L=0.3/1000=0.0003
[单选题]- I wonder if I could use your computer tonight? I'm not using it right now. ______
A. Sure, go ahead.
B. I don't know.
C. It doesn't matter
D. Who cares?
[单选题][T]BD015415
某井的套管容积为12L/m,油管容积为3L/m,油管壁体积为1L/m,井内是清水,液面在井口,用12 MPa压风机正气举至10 MPa,最多可返出( )液体。
A.3m3
B.8m3
C.10m3
D.12m3
[单选题]签桩的长度一般为()l.0m~l.5m。。
A.0.2 m~0.5m
B.0.6m~0.9m
C.l.0m~l.5m
D.l.6m~2.0m
[单选题]在B=0.4Wb/m2的匀强磁场中,放一根长L=0.5m,I=5A的载流直导体,导体与磁场方向垂直,导体受到的力是( )。
A.1N
B. 0N
C.2N
D. 0.2N
[简答题]如图所示，以知L1=297m，L2=238m，h1=12m，h2=8.5m，垂直比载g1=25.074×10-5N/n.mm2，应力δ0=48.714MPa。请计算2#杆的垂直档距。
[判断题]两个L1、L2互感线圈,其互感系数为M,当其顺串使用时其等效电感为L=L1+L2+2M,反串时等效电感为L1+L2-2M。( )
A.正确
B.错误
[判断题] 由L=i可知,电感L与电流i成反比( )。
A.正确
B.错误
[单选题]- I wonder if I could use your computer? ______
A. Sure, here you are
B.I don' t know
C. It doesn't matter
D. who cares
[单选题]1316有一双排脚手架，搭设高度为48m；步距h=l. 5m,跨距La=l. 8m,此脚手架连墙( )件布置除应满足计算要求外，其最大竖向间距和最大水平间距还应不大于（）
A.竖向6m,水平向6m
B.竖向5m,水平向5.
C.竖向4.
D.竖向4.
