高血压危象治疗，首选药物为（） A.硝普钠静脉滴注 B.复方降压片口服 C.卡托普利

一束入射光线沿与镜面成30°角的方向射到平面镜上，如果使光的传播方向不发生改变，应该采用的方法是[ ]

A.使光线向镜面偏转30°角

B.使光线向镜面偏转60°角

C.使镜面向与光线夹角较小的方向偏转30°角

D.使镜面向与光线夹角较大的方向偏转120°角

阅读理解。

     Green-space facilities are contributing to an important extent to the quality of the urban environment.

Fortunately it is no longer necessary that every lecture or every book about this subject has to start with

the proof of this idea. At present it is generally accepted, although more as a self-evident statement than

on the base of a closely-reasoned scientific proof. The recognition of the importance of green-spaces in

the urban environment is a first step on the right way; this does not mean, however, that enough details

are known about the functions of green spaces in towns and about the way in which the inhabitants are

using these spaces.

     The theoretical separation of living, working, traffic and recreation which for many years has been

used in town-and-country planning, has in my opinion resulted in disproportionate (不成比例的)

attention for forms of recreation far from home, whereas there was relatively little attention for

improvement of recreative possibilities in the direct neighborhood of the home. We have come to the

conclusion that this is not right, because an important part of the time which we do not pass in sleeping

or working, is used for activities at and around home. So it is obvious that recreation in the open air has

to begin at the street door of the house. The urban environment has to offer as many recreation activities

as possible, and the design of these has to be such that more obligatory (强制性的) activities can also

have a recreative aspect.

     The very best standard of living is nothing if it is not possible to take a pleasant walk in the district, if

the children cannot be allowed to play in the streets, because the risks of traffic are too great, if during

shopping you can nowhere find a spot of enjoying for a moment the nice weather, in short, if you only feel yourself at home after the street door of your house is closed after you.

1. According to the author, the importance of green spaces in the urban environment _______.

A. is still unknown

B. is being closely studied

C. is usually neglected

D. has been fully recognized

2.The theoretical separation of living, working, traffic and recreation has led to _______.

A. the disproportion of recreation facilities in the neighborhood

B. all of the recreation facilities far from home

C. relatively little attention for recreative possibilities

D. the improvement of recreative possibilities in the neighborhood

3.The author suggests that the recreative possibilities of green spaces should be provided _______.

A. in special areas

B. in the suburbs

C. in the neighbourhood of the house

D. in gardens and parks

4. The author says "more obligatory activities can also have a recreative aspect" to _______.

A. suggest that obligatory activities don't need to serious

B. show that recreation activities are very important

C. show how recreation activities have spread wildly

D. suggest how to offer recreation activities around home

5. Why would someone only feel himself at home according to the last paragraph?

A. One lives the very best standard of living.

B. There are too many distractions outside his home.

C. There are few recreations around his house.

D. One needs the street door of his house to be opened always.

小儿腹膜后恶性畸胎瘤有诊断价值的血清学检查是

A．癌胚抗原(CE

B．乳酸脱氢酶(LD

C．甲胎蛋白(AF

D．3-甲氧基-4-羟基杏仁酸(VM

E．铁蛋白

2011年上半年，天津市新批三资企业328家，比上年同期下降3.8%；合同外资额90.35亿美元，增长10.0%；实际使用外资72.34亿美元，增长22.3%。其中，新批合同外资1000万美元以上项目89个；合同外资79.4亿美元，增长7.2%，占全市合同外资总量的87.9%；实际使用外资54.3亿美元，增长20.7%，占全市实际使用外资总量的75%。

截至上半年，全市累计批准三资企业22572家，累计合同外资额1293.13亿美元，累计实际使用外资743.5亿美元。在批准建立的三资企业中，有正常生产经营活动的企业5934家，其中，出口型企业1291家。从投资方式看，合资经营的企业1855家，合作经营的企业154家，外商独资经营的企业3887家，外方股价公司38家。从投资的行业看，投资第一产业的15家，投资第二产业的3671家，投资第三产业的2248家。

上半年，全市三资企业完成总产值3311.21亿元，比上年同期增长12.4%；实现营业收入4064.8亿元，增长19.1%；出口创汇141.91亿美元，增长16.7%；实缴税金325.15亿元，增长34.7%；实现利润211.31亿元，下降1.6%。在全市三资企业中，盈利企业3935家，增长4.4%，盈利额263.16亿元，增长3.2%。

2010年上半年，天津市实际使用外资（）亿美元。

A．44.99

B．59.15

C．74.07

D．82.14

舌下腺分泌受（）.

A.鼓索神经

B.舌咽神经

C.迷走神经

D.舌下神经

E.三叉神经