—Have you been to your hometown this yea

题型:选择题

问题:

—Have you been to your hometown this year?
—Yes, and it has changed a lot ________.

A. last year
B. in the last few years
C. that year
D. in the next year
考点:介词短语
题型:选择题
---Tom, don’t drop litter on the ground, please.
---   .
A.That’s a good idea.
B.It doesn’t matter.
C.Excuse me.
D.Sorry, I’ll pick it up.
题型:选择题

SQL支持集合的并运算,在Visual FoxPro中SQL并运算的运算符是【 】。

A.PLUS

B.UNION

C.+

D.∪

题型:选择题

常用眼药剂型及给药方式有()

A.滴眼液

B.眼膏

C.眼周注射

D.眼内注射

E.眼静脉注射

题型:选择题

同步故障产生的故障包括()。

A.同步电压比机端电压(标么值)低15%;

B.机端电压大于40%;

C.同步电压大于20%;

D.同步系数不为零。

题型:选择题

二氯乙烷、三氯乙烷、四氯化碳、95%乙醇脱脂剂适用于什么范围,特点是什么?

更多题库