10． The beef is __________dear． Let-s not buy ．

A． much too ,too much

B． much too ,much too

C． too much ,too much

D． too much ,much too

[单选题]What's the matter, dear?- _________。A.I didn't go to school.B.I have a terr

[单选题]10． —What’ s your_________?—It's cindyjones@163．com．A． e-mail addressB． telephone numberC． favourite dayD． home address

[单选题]10． —What's the time?—It's _________five．A． atB． toC． aboutD． past

[单选题]10． I have ________apple． It’s ______ red apple．A．a；anB．an；aC．the；theD．a，the

[单选题]10． His cousins _________my uncle-s sons and daughters．A．isB．amC．areD．be

Let’s keep in ________.Here is my card. Let’s keep in ________. A. re

Let’s keep in _______ .A. friendshipB. connectionC. relationD. touch

10.设X~N(μ,σ²)，要使Y~N(0,1)，则（）A. $Y=\frac{X}{σ}+μ$B. $Y=σX+μ$C. $Y=\frac{X-μ}{σ}$D

[单选题]10． —What's wrong with your watch?—It is ________．A． breakB． break downC． breakingD． broken

[单选题]Let's ______.A.play footballB.play a footballC.play the footballD.play foot