表达序列标签(expressed sequence tag,EST)

题型:问答题

问题:

表达序列标签(expressed sequence tag,EST)

考点:普通考研07理学分子生物学
题型:问答题

某套住宅建筑面积100㎡,套内建筑面积为92㎡,使用面积系数为0.8,每平方米使用面积为3000元,则该住宅建筑面积下的价格为()元/㎡。

A.2400

B.2580

C.2607

D.2760

题型:问答题

静脉注射对比剂盆腔增强扫描注射速度1~2ml/秒,延时(开始注射对比剂至开始扫描的时间)最少应为()

A.10秒

B.20秒

C.60秒

D.30秒

E.40秒

题型:问答题

Peter was so excited________he received an invitation from his friend to visit 

Chongqing.

A.where

B.that

C.why

D.when

题型:问答题

阅读理解。

     Our "Mommy and Me" time began two years ago. My next-door neighbor and fellow mother, Christie,

and I were out in our front yards, watching seven children of age 6 and under ride their bikes up and down.

"I wish I could take one of my children out alone," said Christie.

     Then we worked out a plan: When Christie takes one of her children out, I'll watch her other three. And

when she watches two of mine, I'll take someone out.

     The children were extremely quick to accept the idea of "Mommy and Me" time. Christie's daughter,

McKenzie, went first. When she returned, the other children showered her with tons of questions. McKenzie

was smiling broadly. Christie looked refreshed and happy. "She's like a different child when there's no one

else around," Christie shared with me quickly. With her mother all to herself, McKenzie didn't have to make

an effort to gain attention.

     Just as Christie had noticed changes in McKenzie, I also discovered something different in each of my

children during our alone times. For example, I am always surprised when my daughter, who is seldom close

to me, holds my hand frequently. My stuttering (口吃的) son, Tom, doesn't stutter once during our activities

since he doesn't have to struggle for a chance to speak. And the other son, Sam, who's always a follower

when around other children shines as a leader during our times together.

     The "Mommy and Me" time allows us to be simply alone and away with each child-talking, sharing, and

laughing, which has been the biggest gain. Every child deserves (应得到) to be an only child at least once in

a while.

1. What is the text mainly about?

A. The experience of the only child being with mother.

B. The advantage of spending time with one child at a time.

C. The happy life of two families.

D. The basic needs of children.

2. Right after McKenzie came back, the other children were _____.

A. happy

B. curious

C. regretful

D. friendly

3. What is one of the changes the author finds in her children?

A. The daughter acts like a leader.

B. Sam holds her hand more often.

C. The boys become better followers.

D. Tom has less difficulty in speaking.

4. The author seems to believe that _____.

A. having brothers and sisters is fun

B. it's tiring to look after three children

C. every child needs parents' full attention

D. parents should watch others' children

题型:问答题

以下( )不属于对建筑易识别性影响较大的因素。

A.强化建筑特点的可见性
B.建筑平面形状
C.建筑内外熟悉的标志或提示的可见性
D.建筑不同区域间有助于定向和回想的区别程度

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