进行经济效果评价过程中，应用投资收益率进行评价则（）时，方案在经济上是可行的。 A．

从后面观，耳甲与颅侧壁及耳甲与耳舟间约呈45°角()

阅读理解，判断正(T)误(F)。

     Nancy is a student. She wants (想要) to have a blouse. So she goes to a shop (商店) to buy

(买) one.

     The shop assistant(售货员):Good morning I Can I help you?

     Nancy: I'd like a blouse.

     The shop assistant: OK. What colour7 Nancy: I like pink and white.

     The shop assistant: I see.  What about this pink one?

     Nancy: Oh, it's very nice. How much is it? The shop assistant: It's 100 yuan.

     Nancy: Here you are.

     The shop assistant: Thank you.

( )1. Nancy is a student.

(     )2. Nancy likes yellow.

(     )3. The blouse is 100 yuan..

(     )4. Nancy likes the white skirt.

(     )5. Nancy takes the white blouse.

什么是合同转让如何理解合同转让

脑脊液来自咽鼓管者，瘘孔在()

A．筛骨筛板

B．额窦

C．蝶窦

D．鼓室或乳突

E．颅中窝

下列哪种药物治疗绿脓杆菌性角膜炎效果差（）

A.哌拉西林

B.头孢噻吩

C.阿米卡星

D.多黏菌素B

E.妥布霉素