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【单选题】
发动机工作时震动过大的主要原因是（）
A.
进气不通畅
B.
排气背压太高
C.
燃油质量差
D.
主轴承损坏
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举一反三
【单选题】A．震动；惊恐 B．触动；慌乱 C．拨动；恐慌 D．惊动；恐惧
A.
关于兰州拉面用“食用胶”使面条筋道的报道，再一次______了公众对于食品添加剂敏感的神经。“吃一碗面等于吃掉一只塑料袋”的恐吓，成功地煽起了公众的______这再次凸显，我们的记者急需提升基本的科学素养。
B.
填入画横线部分最恰当的一项是（）。
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
相关题目：
【单选题】A．震动；惊恐 B．触动；慌乱 C．拨动；恐慌 D．惊动；恐惧
A.
关于兰州拉面用“食用胶”使面条筋道的报道，再一次______了公众对于食品添加剂敏感的神经。“吃一碗面等于吃掉一只塑料袋”的恐吓，成功地煽起了公众的______这再次凸显，我们的记者急需提升基本的科学素养。
B.
填入画横线部分最恰当的一项是（）。
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
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