下列哪一项是地盘职工须戴安全帽的原因?
A.抵挡风雨及阳光
B.保护头部免受地盘内各种危害
C.用来识别不同工种的职工
参考答案：B
Finish the text. 把短文补充完整。
My is Jenny. I'm years old. I have a . I like it very much. It fur and
a . Lily has a , too. They are .
A．+→
B．→+
C．+→
D．→+
+
→
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+
+
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+
