按照矿物的颜色,可分为();而色率是指:岩石中暗色矿物所占百分含量,是岩浆岩分类和鉴

题型:填空题

问题:

按照矿物的颜色,可分为();而色率是指:岩石中暗色矿物所占百分含量,是岩浆岩分类和鉴定的重要标志之一。

考点:地球科学岩石学岩石学题库
题型:填空题

人一旦吸入氮气,应将其()。如果已停止呼吸,应进行嘴对嘴的人工呼吸如果呼吸困难,应及时输氧,并请医生处置。

A.送往医院

B.吃药

C.注射解毒药

D.转到空气新鲜处

题型:填空题

人工流产中反复吸刮宫腔()

A.易引起DIC

B.易引起失血性休克

C.易引起宫腔粘连

D.易引起人流综合征

E.易引起子宫穿孔

题型:填空题

网络122.21.136.0/22 中最多可用的主机地址是__( )__ 。

A.1024

B.1023

C.1022

D.1000

题型:填空题

Letter A
Dear Rose,
I like your programmes very much. I’m now writing to ask you something about American social customs. My American friends want me to join them in their dinner party. I am very happy and have decided to go, but I’m a little worried about it, too. The social customs in my country are very different from here, so I’m afraid of making mistakes.
Should I bring a present, such as sweets or flowers Should I arrive on time or a little late At the dinner table, how can I know which fork or knife to use How can I let the family know that I’m thankful for their kindness
Wang Lin
Letter B
Dear Wang Lin,
It’s a good idea to bring a small present when you go to a dinner party. Flowers are always nice, or you may bring a bottle of wine if you know that your friends drink it.
You should arrive on time or five to ten minutes late. Don’t get there early. If you’re going to be more than fifteen minutes late, you should call and tell them.
Try. to be free at the dinner table. If you don’t know about choosing the right fork or knife, just watch the other people, and follow them. If you still have no idea of what to do, ask the person next to you.
If you like the food, say so. Of course, you’ll thank them for the meal and for their kindness. It’s also a good idea to send a thank you card the day after.
Rose

If you’re asked to a dinner party but not sure about what to bring as a present, it’s good to bring ______

A. some fruits
B. a bottle of wine
C. sonic flowers
D. a knife and fork

题型:填空题

关于PDCCH的说法不正确的是()

A.频域:占用72个子载波,

B.时域:占用每个子帧的前n个OFDM符号,n<=3,

C.PDCCH的信息映射到控制域中除了参考信号、PCFICH、PHICH之外的RE中,因此需先获得PCFICH和PHICH的位置之后才能确定其位置,

D.用于发送上/下行资源调度信息、功控命令等,通过下行控制信息块DCI承载,不同用户使用不同的DCI资源。.

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