装置在屋外的电动机及其附件（包括操作开关）应装设（）装置。
参考答案：防雨防潮
根据图片把短文补充完整，每空一词。
My friend is Tom He is1.______ years old. He goes to school 2._______．He gets
up3.______ every day. He has4.______ and 5.______ at school. In spring, he
6._______. In summer, he swims. In autumn, he 7._______. In winter, he
8.________．He likes 9._______ and 10._______.He doesn't like11.______.
下列现象是由地球自转产生的是（ ）
A．昼夜交替
B．四季变化
C．昼夜长短变化
D．五带划分
1.______ years old. He goes to school 
2._______．He gets 
3.______ every day. He has
4.______ and 
5.______ at school. In spring, he 
6._______. In summer, he swims. In autumn, he 
7._______. In winter, he 
9._______ and 
10._______.He doesn't like
11.______.