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【判断题】
光致变色玻璃镜片是在无色或有色光学玻璃基础成分中添加卤化银等化合物,使镜片受到紫外线照射后分解成卤素,镜片颜色由深变浅。A.
正确
B.
错误
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举一反三
【单选题】Why did the author throw the new doll upon the floor?
A.
Because she did not like it.
B.
Because she had formed the habit of throwing things on the floor.
C.
Because she wanted to make trouble for Miss Sullivan.
【判断题】If you want to make the car body new and shining, you need to use more wax. The more wax, the better.
A.
正确
B.
错误
【单选题】______ we choose the seventh floor instead of the sixth of the new building? Do you think that therewill be more sunshine?
A.
If only
B.
What if
C.
As if
D.
Even if
【单选题】The new floor wax in trial manufacture in our plant is supposed to ____ continual passing to and fro.
A.
stand for
B.
stand up to
C.
stand out
D.
stand up for
【单选题】The new floor wax being in trial manufacture in our plant is supposed to ____ continual passing to and fro.
A.
stand up to
B.
stand out
C.
stand for
D.
stand up for
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