乙型肝炎病毒的主要传播途径是A．呼吸道传播 B．粪—口传播 C_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

乙型肝炎病毒的主要传播途径是

A．呼吸道传播

B．粪—口传播

C．蚊虫叮咬

D．血液传播

E．母—婴传播

答案

参考答案：D

解析：乙型肝炎病毒主要经血液传播，其次为性接触，也可通过母-婴传播。

补全对话，情景问答

看图选择恰当的句子完成对话。

A. What's the weather like in Hangzhou
B. It's on the first floor
C. Where is the canteen
D. You are welcome
E. What are you doing now
F. It's sunny

	John: Hello. Amy: Hi, John. 1___________________________. John: I'm doing my homework. Amy: 2___________________________? John: It's rainy. How about New York? Amy: 3___________________________.
	Visitor: Excuse me. 4___________________________? Chen: Look, it's on the second floor. This way, please. Visitor: And where is the art room? Chen: 5___________________________. Visitor: Thank you. Chen: 6___________________________.

单项选择题

我国最大的瀑布是（）。

A．壶口瀑布
B．黄果树瀑布
C．吊水楼瀑布
D．大龙湫瀑布