在下雪的天气里，天空的亮度和地面景物的亮度都要比雨天（） A.高 B.低 C.强 D

阅读理解。

     My tears run down from my cheeks (面颊) when I talk to my parents on the phone. What are they doing

when I call them? Dad works from seven o'clock in the morning to nine o'clock in the evening. My mum does

all the housework, she also has to work in the field. But I can't do anything for them.

     Every day she gets up at around 4 o'clock in the morning. When I sometimes call her at 7:30 in the evening,

she tells me that she is still in the field and doesn't have supper. I tell her I'll study hard in the school. I also ask

her to take care of herself and dad because I can't live without them.

     Mum says that the happiest time for dad and her is when my sister and I come back home.

     We play cards in the room, watch TV, or do anything we like, with dad and mum making delicious food in

the kitchen. It is also the happiest time for me.

     Love, sometimes, doesn't need many words. Love your parents like they love you. Give them a call, tell

them you miss them.

1. Why can't the writer live without their parents?

A. Because her parents give her money.

B. Because her parents need her to take care of them.

C. Because she loves her parents and they love her very much.

D. Because they afford (提供) her education (教育).

2. The happiest time for the writer's mum and dad is ________.

A. she and her sister help them make delicious food in the kitchen

B. her sister and her coming back home

C. they play cards in the room

D. they work in the field together

3. Which of the following is the best title?

A. Mum and Dad

B. I love you, Mum and Dad

C. My Family

D. I Love My Family

经实验测定后得知，证券市场在某一时期的证券市场线近似于E_P=0.06+0.09β；基金A和B在该期间内的经营结果为：基金A的实际收益率=10%，基金A的β系数=0.8；基金B的实际收益率=15%，基金B的β系数=1.2。那么，（）。

A．从收益水平的绝对数值看，基金A的收益水平高于市场平均收益水平

B．从收益水平的绝对数值看，基金B的收益水平高于市场平均收益水平

C．根据特雷诺指标，基金A的业绩优于市场平均业绩

D．根据特雷诺指标，基金B的业绩优于市场平均业绩

患者既往有高血压史5年，1个月前曾晕厥一次，若住院检查，还应行下列哪项检查

A．头颅MRI

B．心电图平板试验

C．脑血流图

D．前庭功能

E．前四项

局域网用户可以分为（）。

A、网络管理员；

B、网络用户；

C、网络操作员；

D、组管理员。

什么是“更年期综合症”？