题目内容

Where dill De Forest begin regular radio broadcasts？

A. In Massachusetts.
B. On ships.
C. In New York.
D. On ships in New York harbor.

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What was Clarence Birdseye surprised to learn？

A fish could survive being frozen.
B. The fish were easier to catch in the winter.
C. Food can be kept frozen indefinitely.
D. Solutions that freeze slowly form. large crystals.

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与立体构型改变有关部位E．

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疏散走道和楼梯的最小宽度不应小于1.1m。()

A. 正确
B. 错误

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骨盆入口呈卵圆形，入口前后径较横径长，骶坐切迹较宽，坐骨棘较突出，耻骨弓较窄E．

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Where dill De Forest begin regular radio broadcasts？

A. In Massachusetts. B. On ships. C. In New York. D. On ships in New York harbor.

What was Clarence Birdseye surprised to learn？

与立体构型改变有关部位E．

疏散走道和楼梯的最小宽度不应小于1.1m。()

骨盆入口呈卵圆形，入口前后径较横径长，骶坐切迹较宽，坐骨棘较突出，耻骨弓较窄E．

A. In Massachusetts.
B. On ships.
C. In New York.
D. On ships in New York harbor.