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【单选题】
听力原文:(With) Other viruses, such as smallpox and measles, and polioneuromere, the majority of people mount an immune response even if they never been vaccinated that clears the natural infection. With H1V, there are virtually no incidents of a person who has completely cleared the virus from their body, which means that although some people can control the virus better than others, the body is having trouble making a protective immune response. What is the point the speaker is trying to make about HIV virus?
A.
HIV vaccines trigger an immune response, but that response has proven inadequate.
B.
The body's natural immune response to HIV infection could eradicate the virus.
C.
The majority of people could mount an immune response even without being vaccinated that clears the natural infection from every virus.
D.
Some people can control HIV virus better than others and make a protective immune response.
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参考答案:
举一反三
【单选题】某溶液的pH为9.180,其氢离子活度为
A.
6´10-10
B.
6.6´10-10
C.
6.6´10-10
D.
6.6´10-10
【单选题】Kate asks questions about the director. What mistake does she make?
A.
She thinks the director is a woman.
B.
She thinks the director is a family member.
C.
She thinks the director is a man.
【单选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为9,pOH值应为( )。
A.
9
B.
6
C.
5
D.
8
【单选题】She admired the director to such an extent that she took his words as____oracles.
A.
divine
B.
rebellious
C.
faithful
D.
unbearable
【单选题】某溶液的pH为9.180,其氢离子活度为
A.
610-10
B.
6.610-10
C.
6.6110-10
D.
6.60710-10
【多选题】某溶液的氢离子活度为1×10-9mol/L,其pH值应为 ,POH值应为 。
A.
9;
B.
6;
C.
5;
D.
8
【简答题】法定盈余公积金按照_______扣除______________后的10%提取。
【简答题】A.She is the director of the group. B.She is playing the violin. C.She is playing the piano. D.She is playing the bass.
【多选题】进气支管绝对压力传感器常见故障有()
A.
电源或信号电路短路或断路
B.
传感器损坏
C.
进气道内有杂物堵塞或有油污
D.
真空软管连接不当或破裂
【简答题】A.She is the director of the group. B.She is playing the piano. C.She is playing the violin. D.She is playing the bass.
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