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【判断题】
D 级,气体密闭型防护服;现有的最高级别的呼吸、皮肤眼睛防护。A.
正确
B.
错误
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举一反三
【简答题】In “Easter Wings”, the foot pattern ofline 6-10 goes like this____.A. Tetrameter,trimester, dimeter, pentameter and monometer B. Monometer,dimeter, trimester, tetrameter and pentameter C. Pentameter,m...
【单选题】Which of the following is NOT true according to the passage?
A.
Bird wings have to support the bird.
B.
Bird wings must act as the bird's engine.
C.
Airplane's wings must act as the airplane's engine.
D.
Similar wing shapes in aircraft and birds produce similar flight capabilities.
【单选题】Which of the following is not true according to the passage?
A.
Bird wings have to support the bird.
B.
Bird wings must act as the bird's engine.
C.
Airplane's wings must act as the airplane's engine.
D.
Similar wing shapes in aircraft and birds produce similar flight capabilities.
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