因为电动机起动电流很大,所以要限制连续起动间隔时间和次数。()
参考答案:错
请在下列各序号后面的横线上填上恰当的结构名称,以完善细胞的概念图。
①_________ ②_________ ③_________ ④__________ ⑤_________
They have earned lots of money,so I __________ believe that the business is a success.[ ]
A.mildly
B.firmly
C.actively
D.tightly