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【判断题】
柴油机气缸容积与燃烧室容积之比为压缩比。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】下列维生素可以作为脱氢酶辅酶的是( )
A.
维生素B 1 (硫胺素)
B.
维生素B 2 (核黄素)
C.
维生素B 6 (磷酸吡哆醛)
D.
维生素B 12 (钴胺素)
【单选题】Generally speaking, they had a wonderful holiday at the seaside, but the last three days were ______ by the unexpected storm.
A.
destroyed
B.
wasted
C.
damaged
D.
spoiled
【单选题】Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is (1)_____ only among those with whom he is acquainted. When a stranger is at present, he often seems nerv...
A.
relaxed
B.
frustrated
C.
amused
D.
exhausted
【单选题】Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is【21】only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, 【...
A.
relaxed
B.
frustrated
C.
amused
D.
exhausted
【单选题】Generally speaking, a British is widely regarded as a quiet, shy and conservative person who is【1】only among those with whom he is acquainted. When a stranger is at present, he often seems nervous, ev...
A.
relaxed
B.
frustrated
C.
amused
D.
exhausted
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