选择题：The ship's generator broke down, and the pumps had

题目内容：

The ship's generator broke down, and the pumps had to be operated instead of mechanically. A artificially
B automatically
C manually
D synthetically

参考答案：

To keep healthy, we should eat more vegetables and

To keep healthy, we should eat more vegetables and less ______.A meatB foodC win

UDP协议不包括的字段是A 源端口B 目的端口C 序号D 校验和

It is implied in the passage that ________.A the mule is a stupid and insensitiv

.一般用来衡量通货膨胀的物价指数是A 消费者物价指数B 生产者物价指数C GDP平均指数D 经济结构的变动