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【单选题】
化简sin(180°-α)+sin(-α)的结果是A.
0
B.
1
C.
-1
D.
2sinα
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举一反三
【简答题】Here’s an unusual story: a diamond ring was recently found in an egg. The magician, Liu Qian, discovered it in front of an audience of million at CCTV’s Spring Festival Gala. Liu’s magic tricks have m...
【单选题】____ impressed the audience most was_____the magician LiuQian played in last year’s Spring Festival Gala.
A.
What; what
B.
What; that
C.
That; what
D.
That; that
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