合成催化剂升温还原的载体为()。A、氢气 B、氮气 C、氧气 D、空气

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问题:

合成催化剂升温还原的载体为()。

A、氢气

B、氮气

C、氧气

D、空气

考点:甲醇装置操作工高级甲醇操作工高级甲醇操作工题库
题型:单项选择题

一个体重为60kg的人,其血量约为()。

A.4000ml

B.4200~4800 ml

C.5000ml

D.6000ml

E.7000ml

题型:单项选择题

常出现牙的生长叶数目正常但形状如圆锥的一组牙是

A.下颌第三磨牙
B.下颌第二前磨牙
C.上颌中切牙
D.上颌侧切牙
E.上颌尖牙

题型:单项选择题

书面表达。

     阅读下面一封来自于the Changchun Times的求助信,按照要求完成写作任务。

                             How can I have a more meaningful vacation?

Dear editor,

     I'm a Senior Two boy. We used to have extra classes in both summer and winter

vacation. However, we don't have to go to school this winter vacation. Though delighted,

I am confused how to have a more meaningful vacation. What should I do?

                                                                                                                 Yours,

                                                                                                                 Tom

【写作内容】

     假如你是李华,你很想帮助他,请你写一封回信给他,提出适当的建议,要点如下:

     1. 选几本有意义的书,开阔眼界;

     2. 进行体育锻炼,增强体质;

     3. ……

注意:

     1. 适当添加内容;

     2. 信的开头结尾已给出,不计人总词数;

     3. 字数120左右。

Dear Tom,

     I'm Li Hua from a high school as well. _________________________________________

____________________________________________________________________________

____________________________________________________________________________

     May you have a meaningful vacation.

                                                                                                                          Yours,

                                                                                                                          Li Hua

题型:单项选择题

股票交易机制的目标在于维护股票市场的()。

A.流动性

B.稳定性

C.有效性

D.以上都有

题型:单项选择题

58岁,绝经年,子宫不规则出血2个月, * * 分泌物增多, * * 发胀数日,检查子宫正常大小,左附件可触及拳头大小、囊实性包块,活动无压痛,其诊断可能为

A.子宫内膜异位症

B.子宫内膜息肉

C.输卵管卵巢积水

D.卵巢颗粒细胞瘤

E.卵巢库肯勃瘤

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