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问题 不定项选择题

下列各表述与示意图一致的是

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A．图①表示25℃时，用0.1mol/L盐酸滴定20mL 0.1mol/L NaOH溶液，溶液的pH随加入酸体积的变化

B．图②中曲线表示反应2SO2(g) +O2(g)2SO3(g) △H<0，正、逆反应的平衡常数K随温度的变化

C．图③表示10mL 0.01mol/L KMnO4酸性溶液与过量的0.1mol/L H2C2O4溶液混合时，n(Mn2+)随时间的变化

D．图④中a、b曲线分别表示反应CH2=CH2(g)+H2(g)→CH3CH3(g) △H<0使用和未使用催化剂时，反应过程中的能量变化

答案

答案：B

改错题

五．短文改错。(10分)

Dear Jim,

I'd like to tell you something more about our school       1._______

sports meet. It was holding on Oct. 6, which was a            2._______

fine day. There were over 1,000 students and teachers         3._______

attend it. Wang Lin, a student from my class won the          4._______

100 - meter race. He finish the race in 12.6 seconds           5._______

and broke in the school record. The sports meet              6._______

was really success. That was because we were               7._______

all trying to do my best.                                 8._______

Although I was not one-of the winner, I                    9._______  

was proud of that we had done.                          10. _______

Looking forward to receiving your letter.

Yours,

Li Ping
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单项选择题

以下有关乳腺疾病的诊断和治疗不正确的是

A． * * 纤维腺瘤虽属良性也有恶变可能

B．乳管内 * * 状瘤极少恶变

C．慢性囊性乳腺病常为多发性病变

D．急性乳腺炎患者几乎都是产妇

E． * * 内间质也可以发生恶性肿瘤
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