R1：R2=1：2，把它们串联起来接入电路，则通过它们的电流比为I1：I2=__

综合填空。

Dear Sam,

     Thanks for your letter. I'm very happy you can(1)w_________ to me. My name is Zhang Qian. I'm a

Chinese(2)g_________. I'm medium(3)h_________ and not very heavy. I have black, straight hair. I like

basketball and I am the(4)c_________ of our school basketball team. I like reading magazines and

(5)n_________ after school. 

     In your letter you asked me something about Beijing. Beijing is very beautiful. I visited Tian'an Men

Square and the (6)P_________ Museum last year. The food in Beijing are (7)d_________. Some food are

cheap, but some are very(8)e_________.

     I am learning English now. I often (9)t_________ with foreigners in English, and they are very

(10)f_________. Let's be good friends.

                                                                                                                          Yours

                                                                                                                       Zhang Qian

妊娠高血压性心脏病，心衰Ⅱ度，不宜使用下列何种利尿剂

A．氨苯蝶啶

B．氢氯噻嗪(双氢克尿噻)

C．甘露醇

D．呋塞米(速尿)

E．利尿酸钠

在药品经营过程中，最具特点的职业道德要求是（）。

A.依法促销，诚信推广

B.实事求是，一丝不苟

C.保护环境，规范包装

D.团结协作，尊重同仁

E.以德为先，尊重生命

根据《国有土地上房屋征收与补偿条例》的规定，房屋征收对被征收人给予的补偿包括( )等。

A．被征收房屋类型的补偿

B．被征收房屋价值的补偿

C．因征收房屋造成的搬迁、临时安置的补偿

D．因征收房屋造成的价值损失的补偿

E．因征收房屋造成的停产停业损失的补偿

（）是指期刊在内容和形态方面要体现自己独有的特色，并能够有力地吸引自己所选定的读者。

A.内容定位

B.风格定位

C.读者定位

D.差异定位