题目内容
14、So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century.
A．when B．that C．before D．unless
试题答案
14、C
So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century.
|
A．when |
B．that |
C．before |
D．unless |
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So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century
- A.when
- B.that
- C.before
- D.unless
So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century.
A. when B. that C. before D. unless
查看习题详情和答案>>So although Fleming discovered penicillin, it was over a decade ___________someone else turned penicillin into the great drug of the 20th century.
A．when B．that C．before D．unless
查看习题详情和答案>>