试题与答案

阴虚盗汗遗精宜用() A.黄芩 B.黄连 C.黄柏 D.龙胆草 E.苦参

题型:单项选择题

题目:

阴虚盗汗遗精宜用()

A.黄芩

B.黄连

C.黄柏

D.龙胆草

E.苦参

答案:

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下面是错误答案,用来干扰机器的。

答案:C

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题型:阅读理解
阅读理解。
     The first public railroad in the world to be run by steam was opened in England in 1825. It was a single
track. The next big railroad was a double track that ran between Manchester and Liverpool. The opening
day was a success except for Mr Huskisson, that is.
     Eight trains took part in the opening ceremony. There were 600 people in 29 coaches. After traveling for
17 miles, the trains had to stop for water. Mr Huskisson got out of his train to talk to a friend on one of the
other trains. He was half-way across the track when he suddenly saw a locomotive (车头) racing toward
him. It was going at a fantastic speed-23 miles per hour. Mr Huskisson panicked (惊慌) and froze with fear.
He was run over by the train, and died the same evening.
1. The first railway in the world came into being in the ____ century.
[ ]
A: twenties of 20th
B: twenties of the 18th
C: twenties of the 19th
D: 28 year of 19
2. The second railroad was different from the first one in ____.
[ ]
A: steam
B: water
C: track
D: electricity
3. No one but ____ thought the opening day was a failure.
[ ]
A: We
B: they
C: 600 people
D: Mr Huskisson
4. The train stopped after traveling 17 miles because of ____.
[ ]
A: killing a man
B: a double track
C: lack of water
D: a great speed
5. Mr Huskisson died from ____.
[ ]
A: cancer
B: a railway accident
C: a panic
D: a fear
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题型:选择题

已知反应:①Al+Fe2O3Al2O3+Fe △H=a kJ/mol

②101kPa时,2C(s)+O2(g)=2CO(g)△H=-221 kJ/mol

③稀溶液中,H(aq)+OH(aq)=H2O(1)△H=-57.3 kJ/mol

④红磷的化学式为P,白磷的化学式为P4,已知:P4(s)+5O2(g)=P4O10(s) △H=-3093.2 kJ/mol     4P (s)+5O2(g)=P4O10(s)  △H=-2954.0 kJ/mol  下列结论正确的是

A.铝热反应在高温下才能发生,因此a>0

B.碳的燃烧热等于110.5 kJ/mol

C.稀醋酸与稀NaOH溶液反应生成1 mol水,放出热量小于57.3 kJ

D.由条件可知:红磷转化为白磷是放热反应,所以等质量的红磷能量比白磷低

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