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【单选题】
在相同时间内,一束单色光在空气中和玻璃中( )。A.
传播的路程相等，光程不相等
B.
传播的路程不相等，光程相等
C.
传播的路程相等，光程相等
D.
传播的路程不相等，光程不相等
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【简答题】阅读理解。 Have you ever heard of Webster Toys? Webster has made good, safe and interesting toys for more than a hundred years. We sell them and children play with them in different countries from Australi...
【简答题】老子的代表作是什么？
【简答题】Toys have several functions except____
【单选题】---Youshould have prepared your speech for the meeting, Mr. Smith. ---Yes, I know. But how could I _____ the meeting date fixed so soon.
A.
while
B.
as
C.
after
D.
with
【简答题】You have heard of Webster Toys. Webster has made good, safe, interesting toys for more than 100 years. Now we sell them, and children play with them, in countries from New Zealand to Norway, and from ...
【简答题】老子的代表作是( )
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