摘要： certain that his invention will lead to the development of production. A.That's B.This is C.It's D.What's
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37.________________certain that his invention will lead to the development of production.
A.That's B.This is C.It's D.What's
查看习题详情和答案>>37.________________certain that his invention will lead to the development of production.
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A．That's |
B．This is |
C．It's |
D．What's |
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37.________________certain that his invention will lead to the development of production.
| A．That's | B．This is | C．It's | D．What's |