气体放电光源中,具有光效高、寿命长,透雾性强,其辐射波长集中在人眼最灵敏的黄绿光范围

题型:单项选择题

问题:

气体放电光源中,具有光效高、寿命长,透雾性强,其辐射波长集中在人眼最灵敏的黄绿光范围内,适合于车道、街道照明的是()。

A.荧光高压灯

B.金属卤化物灯

C.高压钠灯

D.氙灯

考点:一级建造师建筑工程建筑工程管理与实务
题型:单项选择题

根据下面对话中的情景,在空白处填入适当的语句,使对话内容完整。

A: Hi, Linda. Glad to see you!

B: Glad to see you, too.

A: I didn’t see you yesterday.【小题1】

B: Oh. I went to my friend’s birthday party.

A:【小题2】

B: It was Rose’s.

A: Today is March 17th. Oh, I see. Her birthday is March 16th.

B: You’re right.

A:【小题3】

B: We sang, danced and played games at the party.

A:小题1:?

B: Yes, we did. All of us were very happy.

A: Where did you have the party?

B: We had the party in a restaurant.

A: That’s wonderful. I will have my birthday party in a restaurant next time.

题型:单项选择题

The professor could tell by the ________ look in her eyes that she did not understand a single word

of his lecture. [ ]

A. cold

B. blank

C. innocent

D. fresh

题型:单项选择题

制造企业安全库存、销售企业安全库存分别由()设定。

A.生产周期、销售周期

B.消耗量、提前期

C.DRP,MRP

D.MRP,DRP

题型:单项选择题

单纯髋关节后脱位应尽可能在24小时完成,复位成功后,患肢做皮肤牵引或穿丁字鞋固定于中立位2~3周。不必石膏固定。

闭合性骨盆骨折可引起( )

A.骨筋膜室综合征
B.肾挫伤
C.脂肪栓塞
D.失血性休克
E.损伤性骨化

题型:单项选择题

西周时代天子用几鼎()

A、3.0

B、5.0

C、7.0

D、9.0

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