更多"[单选题]I paid ____for the new book."的相关试题:
[单选题]( )I would it if you paid in casH.
A. appropriate
B. appoint
C.approach
D. appreciate
[单选题] The workers have built a lot of new houses in Shanghai .
A. in the past ten years
B. for ten years
C. last year
D. ten years ago
[简答题] I don't think he can operate the new type of computer.
[单选题]-- was born in Boston, but I studied in New York. ___?
--I was born in New York, but studied in Boston.
A. What do you do
B. And you
C. Where were you
D. Do you
[单选题]-- I have lost my new English dictionary. ______
A. What a pity!
B. It's nothing.
C. It doesn't matter.
D. Not at all.
[单选题]-You haven't paid for it yet. ______
A. Oh, I'm really very sorry.
B. Thank you.
C. Not at all.
D. Of course, I know.
[单选题]若i1=I1sin(ωt+Ψ1），i2=I2sin(ωt+Ψ2）。求i=i1+i2,则i和初相角Ψ为（ ）。
A.
B.
C.
D.
[单选题]两个正弦交流电流i1和i2的有效值I1=I2=4A。i1与i2相加后总电流的有效值仍为4A，则它们之间的相位差是()。(3501)
A.180°
B.120°
C.90°
D.60°
[判断题] 直流串联电路的总电流等于各支路电流之和,即I=I1+I2+I3+…+In。
A.正确
B.错误
[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
[判断题]体力劳动强度按劳动强度指数I大小分为四级，分别为：I级（I≤15);II级
（I=15-20);III级（I=20-25)；IV级（I>25)。()
A.正确
B.错误
[单选题]执行下列程序后，i的值是（）。
int i，x；
for（i=1，x=1；i<20; i++）
｛if (x>=10) break;
if(x%2= =1)
｛x+=5; continue; ｝
x-=3;
｝
A.4
B.5
C.6
D.7
[单选题]当ωt=360°时，ｉ1、ｉ2、ｉ3分别为( )
A.负值、正值、0
B.0、正值、负值
C.负值、0、正值
D.0、负值、正值
[单选题]如图所示电路中,流经三个电阻的电流分别为I1、I2 和I3。若已知R1、R2 和R3,则I1 /I3=( )
A.R3/(R1+R2)
B.R3/(R1+R2)R2
C.(R3+R2)/(R1+R2)
D.R3/R1
[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?
[单选题]一台微机的型号中含有i3、i5、i7等内容时，其含义是（ ）。
A.运算控制单元的档次
B.显示器大小
C.主存储器容量大小
D.硬盘容量大小
