注射剂按药物的分散方式可分为（）、混悬型、乳剂型以及无菌注射粉末等类型。

喜欢演奏马头琴的是下列哪个民族[ ]

A、蒙古族

B、哈萨克族

C、回族

D、朝鲜族

儿童认知能力中，最先发展且速度最快的领域是（）

A.注意

B.感知觉

C.思维

D.记忆

阅读理解。

     To be sure, only children experienced some things differently from those with sisters and brothers.

Many feel more pressure to succeed. They also tend to look only to their parents as role models in the

absence of brothers and sisters.

     In India, 10-year-old Saviraj Sankpal founded a support group for the tiny minority of only children.

Among other things, the group does volunteer work to counter (反对) the myth that they are not

responsible. "People think we're treated too kindly and ruined," says Sankpal, a computer engineering

students. "But I'd like to remind them how lonely it can get."

     Most only children, however, say they wish for sisters or brothers only when it comes to caring for

aging, unhealthy parents. Britain's David Emerson, co-author of the book The Only Child, says that such

a person bears terrible burden in having to make all the decisions alone. Emerson knows from

experience: After his father died, he chose to move his elder mother from their family home, where she

was vulnerable (易受攻击的)to house breakers, to a new one with more security. "The move was quite

hard on her, and she might feel that I pushed her into it," he says. "After all, I am left with that

responsibility."

     In the future, more and more only children will likely face similar choices. With working mothers

increasing, many families are finding they simply don't have the time, money or energy to have more than

one child. As only children become common, perhaps the world will realize that the charge made against

them is unjust.

1. it can be inferred from the passage that the author's attitude towards only children is _______.

A. objective    

B. subjective      

C. ironic      

D. Humorous

2. It can be inferred from the passage that only children's parents should______.

A. do volunteer work to help their only children

B. let their only children make all the decisions alone

C. set good examples for their only children

D. found a support group for their only children

 3. Emerson decided to move his elderly mother to a new house because he _______.

A. is the only who cares about her    

B. doesn't want to leave her alone

C. wants to share the responsibility with her  

D. is worried about her safety

4. It is quite usual now for a working mother to__________.

A. spend all her time and money on her only child

B. be responsible for bringing up her only child

C. have and bring up only one child   

D. devote all her energy to her job

 5. The main idea of the passage is that______.

A. only children have to face many challenges

B. only children are ruined and irresponsible

C. most only children want to share their responsibility with their parents

D. most only children have no brothers and sisters

单位不配合突发事件所在地人民政府依法采取的措施，相应的处罚应该是（）

A.责令改正

B.由公安机关依法处罚

C.追究民事责任

D.追究刑事责任

抽余碳四通常又称（）。

A、RBB

B、BRB

C、BBR

D、RRB