三相系统中采用中性点不接地方式的特点？

为患者张某静脉注射10%葡萄糖酸钙10ml，推注时，患者诉说疼痛，推注稍有阻力，局部肿胀，抽无回血，提示

A．针头滑出静脉
B．针头部分阻塞
C．针头斜面紧贴血管壁
D．静脉有痉挛
E．针头斜面一部分穿透下面血管壁

Welcome to Can­I­Help­You.We offer different kinds of services to people in our community. If you need any of the following services, please email us to zyyingyu@jks.net or telephone us.

Education

Information on primary and middle schools. Tel: 2432­5678

Housing

Information on buying or renting houses. Tel: 2432­5679

Out­of­school Activities

Information on activities and services for children aged between 5 and 18. Tel: 2432­5348

Holiday Activities

Different activities for families in different seasons. Tel: 2432­5172

Health

Information on local health services, like hospitals and first aid. Tel: 2432­5533

Insurance

Information on car insurance, life insurance, etc. Tel: 2432­5666

Markets

Information on local supermarkets, farmers’ markets and farms. Tel: 2432­5338

Entertainment

Information on local places for fun, like cinemas and parks. Tel: 2432­5564

Before and After School Childcare

Information on school age childcare programs. Tel: 2432­5555

小题1:. If you need their services, you can __________.

A．send them a letter

B．go to their offices

C．email them

D．leave them a message小题2:. How many kinds of services do they offer?

A．Six.

B．Seven.

C．Eight.

D．Nine.小题3:. If you need someone to look after your eight­year­old child after school, you should call __________.

A．2432­5679

B．2432­5172

C．2432­5555

D．2432­5338

《伤寒论》中治疗“热利下重者”，宜用（）

A.黄芩汤主之

B.葛根芩连汤主之

C.葛根汤主之

D.黄连汤主之

E.白头翁汤主之

已知幂函数f（x）的图象经过点（27，3），则f（x）的解析式是______．

引起外因火灾的火源有：明火、（）、（）、和（）。