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【判断题】
齿轮泵中,齿轮副的啮合点将密封容积分成两部分,轮齿逐渐脱离啮合的一侧,是吸油腔。( )}A.
正确
B.
错误
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举一反三
【单选题】Only when I read this story for a second time _________to appreciate its beauty.
A.
did I begin
B.
that I begin
C.
I began
D.
had I begin
【单选题】Only when I read this story for a second time to appreciate its beauty. [ ]
A.
did I begin
B.
that I began
C.
I began
D.
had I began
【单选题】The hunter kept the lion’s skin and head as____.
A.
trophies
B.
fillet
C.
tulip
D.
clown
【简答题】孔子主张的“不愤不启，不悱不发”体现了循序渐进的教学原则。（ ）
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