城市快速路可采用的设计速度为()。 A.50km/h B.60km/h C.80km

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问题:

城市快速路可采用的设计速度为()。

A.50km/h

B.60km/h

C.80km/h

D.100km/h

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阅读理解。

     A train stopped at a small station. A man looked out of the window and saw a woman. She was selling

cakes. People from the train were buying them. The man wanted to buy a cake, but the woman was standing

far from the window. It was raining, and the man didn't want to go out in the rain.

     Suddenly he saw a boy. He was walking on the platform (站台) not far from him."Come here, boy!" the

man said."Do you know how much those cakes cost?"

     "Five cents for each," the boy answered.

     The man gave the boy ten cents and asked him to buy two cakes."One for me, and one for you," he told

the boy.

     A few minutes later, the boy came back. He was eating a cake. He gave the man five cents and said,

"There was only one cake."

1. The woman was selling cakes _________.

A. on the train

B. by the window

C. at the station

D. far from the station

2. The man wanted to _________.

A. get off the train

B. buy a cake

C. talk to the woman

D. take a walk

3.  The boy was _________.

A. clever

B. far from the train

C. selling cakes

D. playing there

4.  At last the man _________.

A. didn't get anything

B. got one cake to eat

C. was pleased with the boy

D. got half of the money back

5. When the boy gave back five cents to the man, the boy was _________.

A. eating two cakes

B. very sorry

C. eating one cake

D. very unhappy

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已知某试验范围为[10,90],若用分数法进行4次优选试验,则第二次试点可以是     

题型:多项选择题

下列说法正确的是

①频数和频率都能反映一个对象在试验总次数中出现的频繁程度;

②每个试验结果出现的频数之和等于试验的样本总数;

③每个试验结果出现的频率之和不一定等于1;

④概率就是频率。[ ]

A.①

B.①②④

C.①②

D.③④

题型:多项选择题

2013年3月23日,中国国家 * * 习 * * 在莫斯科国际关系学院发表重要演讲。习 * * 说,鞋子合不合脚,自己穿着才知道。一个国家的发展道路合不合适,只有这个国家的人民才最有发言权。当代中国的发展道路是(   )

A.中国特色社会主义道路

B.可持续发展道路

C.依法治国的道路

D.共同富裕的道路

题型:多项选择题

将土体视为弹性介质,采用m法计算桩的水平承载力和位移时,其水平抗力系数随深度变化图式为下列()种情况。

A.不随深度而变

B.随深度线性增大

C.随深度线性减小

D.随深度非线性变化

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