2013年国庆期间北京的雾霾天气再次来临,空气中的细菌、过敏原和有害物质使很多人生病

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问题:

2013年国庆期间北京的雾霾天气再次来临,空气中的细菌、过敏原和有害物质使很多人生病。请结合图示,回答下列问题:

造血干细胞在胸腺和骨髓内转变为a、b、c等细胞的过程称为()

考点:高中生物免疫调节免疫调节题库
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阅读理解。

     John is a basketball fan (迷). He likes playing basketball very much. His favourite basketball player is

Michael Jordan. He is on the school basketball team. He often plays basketball after school.

     George is John's good friend. He doesn't play basketball. He likes playing volleyball. He plays volleyball

every afternoon.

1. John likes _____. [ ]

A. volleyball

B. basketball

C. baseball

D. ping-pong ball

2. _____ is John's favourite basketball player.[ ]

A. George

B. Michael Jordan

C. Jonald

D. John

3. _____ is on the school basketball team.[ ]

A. John

B. George

C. Jordan

D. John's friend

4. Does George play basketball? [ ]

A. Yes, he does.

B. He likes basketball.

C. No, he doesn't.

D. We don't know.

5. Geoege plays volleyball _____. [ ]

A. every day

B. every morning

C. every afternoon

D. every evening

题型:填空题 案例分析题

The factory, including its machines and buildings, ______ burnt to ashes during the fire.

A.is

B.are

C.was

D.were

题型:填空题 案例分析题

青蒿鳖甲汤的组成药物中含有()

A.知母、石膏

B.石膏、丹皮

C.丹皮、生地

D.生地、当归

E.当归、芍药

题型:填空题 案例分析题

流体所具有的机械能不包括()。

A、位能

B、动能

C、静压能

D、内能

题型:填空题 案例分析题

教师的素质在于他的个人能力。( )

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