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【单选题】
主要用于制作船用中高速柴油机、汽车和拖拉机的柴油机或汽油机的活塞的铝合金为________。A.
ZL110
B.
ZL102
C.
ZL104
D.
ZL109
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反馈参考答案：
举一反三
【单选题】We hold them up to the standards we see in our top people.
A.
We compare them with the top people and see if they have the same traits.
B.
We evaluate them according to the qualities we see in our top people.
【简答题】简述革兰染色原理及意义
【单选题】在一条直线状的电场线上有着A、B两点，且两点的电势关系为【图片】。现将一负电荷放在A、B两点的连线之间由静止释放，则它将
A.
向 A点加速运动。
B.
向 A点匀速运动。
C.
向B 点加速运动。
D.
向 B点匀速运动。
【单选题】We live on the top floor,________has really high celling and skylights.
A.
which
B.
where
C.
/
D.
that
【单选题】We hold them up to the standards we see in our top people.
A.
We compare them with the top people and see if they have the same traits.
B.
We evaluate them according to the qualities we see in our top people.
C.
We put up with them because they show the standards of top people.
D.
We regard them as the standards for recruiting top people.
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