问题
单项选择题 A1/A2型题
幼儿急疹的病原体是（）。
A.风疹病毒
B.人疱疹病毒6型
C.带状疱疹病毒
D.腺病毒
E.合胞病毒
答案
参考答案：B
解析：幼儿急疹由人疱疹病毒6型引起，传染性不强。
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幼儿急疹的病原体是（）。
A.风疹病毒
B.人疱疹病毒6型
C.带状疱疹病毒
D.腺病毒
E.合胞病毒
参考答案：B
解析：幼儿急疹由人疱疹病毒6型引起，传染性不强。
Mr. Green asked a lot of questions about the buses. But Sam couldn’t answer them. Here’s a timetable. Friends, after you read it, can you answer Mr. Green’s questions?
A. Five B. Six C. Seven D. Eight 2. How often does the bus get to the New Street? A. Every half an hour B. Every twenty minutes C. Every ten minutes D. No answer 3. At what time does Bus Four leave the Hotel? A. Seven fifty-five B. Eight o’clock C. Five minutes past eight D. No answer 4. I work in the hospital. It is quite near the bus stop. Only three minutes’ walk. I must reach the hospital at eight o’clock. Which bus should I take? A. The first bus B. The second bus C. The third bus D. The fourth bus 5. I start my work at 8:00. I have breakfast at 7:30. Before breakfast, I must get to the market. Which bus should I take? A. The first bus. B. The second bus. C. The third bus. D. The fourth bus. | ||||||||||||||||||||||||||||||||||||||||||||||||||