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【判断题】
进气控制主要就是两方面的控制，一是改变进气量，控制发动机转速；二是改变进气路径、进气时刻和进气压力，提高进气效率。A.
正确
B.
错误
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举一反三
【单选题】I had no idea of the exact address of Xinhua High School ________I was outside its front gate.
A.
when
B.
after
C.
until
D.
because
【简答题】I had the windows cleaned yesterday.(翻译)
【单选题】Not once since my son went to high school ______ traveling with him.
A.
had I gone
B.
have I gone
C.
I have gone
D.
I had gone
【单选题】I had never heard an English word ________ before I went to junior high school. [ ]
A.
speak
B.
to speak
C.
speaking
D.
spoken
【单选题】The doctor insisted I ____ a high fever and that I ____ a rest for a few days. [ ]
A.
had; had
B.
have; have
C.
had; have
D.
have; had
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