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【单选题】
当直线垂直于投影面时,其投影为一点 ,这种性质叫
A.
类似性
B.
真实性
C.
垂直性
D.
积聚性
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【单选题】— I’d like to invite you to our party this weekend. — Thank you, but _________I’ll have time I’m not sure at the moment.
A.
whether
B.
what
C.
when
D.
that
【单选题】I’ll invite you to come to Wendeng ____ you are free next week.
A.
if
B.
unless
C.
so that
D.
why
【单选题】I’ll invite you to come to Weihai( )you are free next week.
A.
if
B.
where
C.
so that
【单选题】I’ll invite you to my new flat as soon as I finish ________ it.
A.
decorating
B.
decorate
C.
to decorate
D.
decorated
【单选题】The teachers often tell their pupils _____ across the road when the traffic light is red.
A.
don’t go
B.
not go
C.
not to go
D.
didn’t go
【单选题】公元5世纪,大举入侵并摧毁西罗马帝国的是()。
A.
高卢民族
B.
日耳曼民族
C.
土耳其民族
D.
以上都不对
【单选题】A: Have you got any idea what you’ll buy for Betty’s birthday? B: Well, I haven’t decided yet. Probably I’ll invite her to watch the movie Zootopia, you know, she likes it so much. What gift wil...
A.
A bag.
B.
A music record.
C.
A film ticket.
【单选题】I’ll invite you to come to Weihai ________ you are free next week.
A.
.if
B.
where
C.
so that
D.
.why
【单选题】船舶生活活污水物理化学处理装置的主要组成为 。
A.
固液分离器,消毒供药装装置,絮凝沉淀箱,清水排出和污泥返送装置,污泥箱等
B.
沉淀柜,消毒柜,排液装置等
C.
滲透膜,高压泵,反冲液,排液阀等
D.
沉淀柜,污泥柜,焚烧炉等
【单选题】—I’d like to invite you to my birthday party this evening. —Thanks, but ____ I’ll have time I’m not sure at the moment.
A.
while
B.
whether
C.
if
D.
when
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