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【单选题】
佩戴自救器时，人员应该( )。A.
匀速快步行走
B.
以最快的速度跑离灾区
C.
跑一段距离休息片刻后继续跑步撤离
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
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【简答题】阅读理解。 Trees are useful to man in three important ways. The first important way is that they provide (提供) man with wood and other products. Trees provide not only man with food, but also many animals w...
【简答题】Trees are useful to man（人类）in three very important ways. The first important way is that they provide man with food, wood and other products. Trees provide not only man with food, but also many animal...
【简答题】Trees are useful to man in three important ways. The first important way is that they provide(提供) us food, wood and other products(产品). Trees provide food not only for man, but also for many animals. ...
【简答题】Trees are useful to man in three very important ways. The first important way is that they provide man with food, wood and other products. Trees provide man and animals with food to live on the earth....
【单选题】Trees Trees are useful to man in three very important ways: they provide him with wood and other products they give him shade and they help(51)drought and floods. Unfortunately, in many parts of the w...
A.
give
B.
use
C.
prevent
D.
lead
【简答题】阅读理解。 Trees are useful to man in three very important ways. The first important way is that they provide man with food, wood and other products (产品). Trees provide not only man with food, but also man...
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