I was fitted an ______ tooth by the dentist.

I wish I ____ longer this morning, but I had to get up and come to class.

(A) could have slept (C) might have slept

(B) slept (D) have slept

I could not persuade him to accept it, _____ the important of it.

(A) if only I could not (B) no more than I could (C) or I could not (D) nor could I

A.Yes,I have

B.No,I haven’t

C.Yes,I do

D.No,I didn’t

A.is

B.were

C.was

D.am

A.I=R/V

B.I=V/R

C.I=RV

D.I=P/S

________________(谈到物理学), I know nothing.

A.bái

B.bài

C.bèi

A.|z-1|=1，则#图片0$#=()。

B.3πi/8

C.-3πi/8

D.3πi/4

E.-3πi/4

A.I=0.5(A)

B.I=1(A)

C.I=2(A)

D.I=4(A)

A.i/result==1

B.i=result

C.i!=result

D.i==result