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问题 多项选择题

摩托罗拉General参数中，下列说法正确的是（）

A.“rxlev_min_def”的参数取值范围是0-63

B.“rxlev_min_def”的参数取值范围是0-64

C.“decision_alg_type”的参数名称是功控算法选择类型

D.“decision_alg_type”的现网设置范围是CME中无此参数

E.“decision_alg_type”的现网设置范围是CME中有此参数

答案

参考答案：A, C, D

阅读理解

Teachers’ Day is coming soon. Miss Wang is talking to her students and her students are listening to her.

“Good morning, boys and girls!”says Miss Wang,“Teachers’ Day is on September l0th. I hear some students are going to buy some presents for your teachers. You want to show your love for your teachers. That is very good, of course. But teachers don’t like to get presents from students. So please don’t buy any! I think on Teachers’ Day, a card from you all is enough(足够的). And the best present for our teachers is your good work. ”

小题1: When is Teachers’ Day?

A．September 1st.

B．September 10th.

C．October 9th.

D．We don’t know.小题2:Where does Miss Wang work?

A．In a factory.

B．In a school.

C．In a hospital.

D．In a park.小题3: The students want to show their love for             .

A．their parents

B．their friends

C．their classmates

D．their teachers小题4:Miss Wang’s             are listening to her.

A．friends

B．students

C．classmates

D．parents小题5: The best present for the teacher is             .

A．the students’ good work

B．some beautiful flowers

C．one Teachers’ Day card

D．an expensive present
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问答题

质量为2.4千克的空瓶内盛有4×10-4米3的水，瓶底与水平地面接触面积为4×10-3米2，将20粒材料相同、大小均为2×10-5米3的合金小球逐个投入瓶内时，瓶内的水没有溢出，此时瓶的总质量为4千克．求：

（1）空瓶内原来盛有水的质量．

（2）未投入合金小球时，瓶底对水平地面的压强．

（3）合金的密度．
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