She racked her brain trying to __________ the math problem. A.work upB.work outC.work downD.work off

She racked her brain trying to __________ the math problem.

A.work up

B.work out

C.work down

D.work off

相关考题：

She's?at?her?best?when?she's?making?big?decisions. () 此题为判断题(对，错)。
查看答案
20．A． causingB． teachingC． pretendingD． trying
查看答案
Why not ______ again? A、tryB、triedC、triesD、trying
查看答案
( ) name is Jane. ( ) is from the USA.A. Her, SheB. She's, SheC. Her, Her
查看答案
Whichmethodisanappropriatewaytodeterminethecosineof42degrees?() A.Doubled=Math.cos（42）；B.Doubled=Math.cosine（42）；C.Doubled=Math.cos（Math.toRadians（42））；D.Doubled=Math.cos（Math.toDegrees（42））；E.Doubled=Math.cosine（Math.toRadians（42））；
查看答案
6．______ Jenny．_______name is Tom．A．I'm；MyB．Her；MyC．I'm；HisD．She's；Her
查看答案
10．1 have a good friend．______ name is Jane．_____ is thirteen．A． Her ； HerB． She's； SheC． Her；SheD． She；She
查看答案
You should take into consideration the fact that we have been very busy recently.A:thought B:account C:mind D:brain
查看答案
Linda has a good faculty for reasoning.A:capacity B:methodC:mind D:brain
查看答案
She′s such an irritating woman,and I don′t know how you can__________her.A.put upB.put up withC.stand up withD.stand with
查看答案
热门标签