The weather was bad yesterday. （改为感叹句）What ____ ____ it was yesterday!
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We helped the farmers on the farm last week. （用现在进行时改写）We ____ ____ the farmers on the farm now.
He doesn’t know much Chinese. （改为同义句）He ____ only a ____ Chinese.
Two boys are in our house. （用there be句型改写）____ ____ two boys in our house.
为了保持燃气轮机的固有优点,燃气轮机传统的发展方向是采用高初参数的 。
A. 圆周循环方式
B. 复杂循环方式
C. 不规则循环方式
D. 简单循环方式
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