【单选题】If you want to lend a hand and need the necessary information, you may go to_____.
B.
a social service committee
C.
the library and churches
【单选题】两个渐开线直齿圆柱齿轮,若齿轮A的模数为4mm,齿轮B的模数为3mm,则下列说法误的是______。
【单选题】If you want to lend a hand and need the necessary information, you may go to ________.
B.
a social service committee
C.
the library and churches
D.
any places of the above
【单选题】汤剂煎煮方法不同影响药物作用的因素与下列哪项无关
【简答题】一对渐开线直齿圆柱齿轮传动,若重合度等1.3,这表明啮合点沿着啮合线等速移动一个法向齿距时,有 %时间是两对齿啮合,有 %时间是一对齿啮合。
【单选题】If you want to lend a hand and need the necessary information, you may go to ______.
B.
a social service committee
C.
the library and churches
D.
any place mentioned here
【单选题】两个渐开线直齿圆柱齿轮,若齿轮A的模数为4mm,齿轮B的模数为3mm,则下列说法中错误的是()
【单选题】If you want to lend a hand and need the necessary information, you may go to _____.
B.
a social service committee
C.
the library and churches
D.
any place of the above