题目内容
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
A.what |
B.which |
C.that |
D.though |
【答案】
C
【解析】略
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题目内容
The fact has worried many scientists ______ the earth is becoming warmer and warmer these years.
A.what |
B.which |
C.that |
D.though |
C
【解析】略