电器设备应包括充电、启动仪表（）。
A.传感器
B.变速器
C.辅助装置
D.传动器
参考答案：A
根据课文内容填空。
Sam and Daming 1.____ for a bike ride yesterday. Then they were hungry and 2.____. So they bought
a 3.____. Sam 4.____ the watermelon on his bike. Then Sam 5.____ off his bike. And the watermelon
6.____ Daming's head.
交收的实质是依据清算结果实现证券与价款的收付，不发生财产实际转移。( )
