问题
选择题
She had a computer at home, and her parents desired that she ______ all her work at home.[ ]
A. do
B. does
C. must do
D. would do
答案
答案：A
搜题请搜索小程序“爱下问搜题”
She had a computer at home, and her parents desired that she ______ all her work at home.[ ]
A. do
B. does
C. must do
D. would do
答案：A
下表为某品牌双桶洗衣机所用电动机的工作参数和该洗衣机洗涤时正转—停—反转……的时间顺序。该洗衣机洗涤、脱水的电功率各是多少？若设定一个 “洗涤：14 min，脱水：2 min”的工作程序，则洗衣机完成这一程序所耗电能是多少？
| 名 称 | 额定电压 | 频率 | 工作电流 |
| 洗涤电动机 | 220 V | 50 Hz | 0.5 A |
| 脱水电动机 | 220 V | 50 Hz | 0.8 A |