《化妆品卫生监督条例》规定，国家对化妆品生产企业的卫生监督实行A．卫生许可证制度B．

以下属于竞争导向定价法的是( )。

A．差异定价法
B．需求差异定价法
C．损益平衡定价法
D．目标收益定价法

阅读短文，判断正 (T) 误 (F)。

      My name is Helen. I'm thirteen. I'm in No. 5 Middle School. I'm in Class 4, Grade 1. HanMei

and LiuYing are my good friends. They are in Row (排) 3, but I'm in Row 6. Today HanMei isn't

here. I think she is at home.        

      Mrs White is our teacher. Her name is Jean White. She is an English teacher. She is very nice.

She looks very young, but I don't know how old she is.

( )1. Helen is twelve.

(     )2. HanMei is in Class 3, Grade 1.

(     )3. Today I'm at home.

(     )4. Mrs White.is our English teacher.

(     )5. Mrs White is an American (美国的) woman.

男性，15岁，3周前微热、咽痛，1周来眼睑轻度水肿，1天前突然剧烈头痛、全身抽搐、意识不清，数分钟后清醒。BP170/100mmHg，尿常规蛋白（++），可见红细胞管型。最可能的诊断是（）

A.慢性肾炎

B.高血压合并高血压脑病

C.颅内占位性病变

D.高血压病

E.急性肾炎并发高血压脑病

多级直接耦合放大器，当输入电压Vi＝0时，输出电压V0出现忽大忽小的波动现象，这些现象叫零点飘移。（）

在电子商务中，物流服务 包括商流服务。