矿车完好标准中,联接装置的链环、插销及销孔的安全系数都不得小于()。
A、8
B、7
C、6
D、9
参考答案:C
The living room is clean and tidy, with a dining table already ________ for a meal to be cooked. [ ]
A. laid
B. laying
C. to lay
D. being laid
下面甲、乙两幅漫画都表现了环保的主题,相比之下,你更喜欢哪一幅?请先选择,再简要说明理由。
甲
乙
答:________________________________________________________________________
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