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【判断题】
把阿基米德络线拟合成圆弧再用逐点比较法圆弧插补,是相似性原理的延伸。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】Most athletes have reached their peak by the time they are 20.
A.
Pitch
B.
top
C.
Point
D.
Tip
【单选题】Tony will return the book to you ______ he finishes reading it.
A.
until
B.
while
C.
when
【多选题】表面活性剂的作用有哪些?
A.
增溶作用
B.
润湿作用
C.
乳化作用
D.
助悬与分散作用
E.
起泡和消泡作用
F.
去污作用
G.
消毒杀菌作用
【简答题】我们可以通过判断主机面板上的________来判断硬盘是否在工作。
【单选题】He will spend six hours at his desk _______ he finishes his composition.
A.
before
B.
until
C.
after
D.
when
【单选题】She is going for vacation when she finishes ____________ her new book.
A.
to write
B.
writes
C.
writing
D.
write
【单选题】She’s______ to be a teacher when she______ her studies. [     ]
A.
goes, finishes
B.
going, finishes
C.
go, finish
D.
going, will finish
【单选题】听力原文:W: Hi, Dan, would you please check my car? It consumes more gas than usual these days. Besides, the engine makes a bigger noise. M: No problem, Mrs. White. Everything will be ok when you come to ...
A.
At the woman's home.
B.
At a gas station.
C.
At a bus station.
D.
At a garage.
【多选题】表面活性剂的作用有哪些?
A.
乳化
B.
润湿
C.
增溶
D.
分散
E.
泡沫
【简答题】我们可以通过主机面板上的________判断来判断主机电源是否接通。
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