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【单选题】
下列哪种激素与代谢无关A.
糖皮质激素
B.
醛固酮
C.
胰高血糖素
D.
抗利尿激素
E.
血管紧张素
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举一反三
【简答题】II.Choose the best prepositions andadverbs for each sentence. 1. A lot of our new students have a hardtime fitting ______ the group. A. upon B.in to C. about D. down 2. You must...
【单选题】Which of the following can be inferred from the first two paragraphs?
A.
The Internet has become inseparable in people's lives.
B.
The information gained online is not necessarily reliable.
C.
The author is hunting for a well-paid job online.
D.
The employers are not advised to get information about applicants online.
【单选题】BHT 是一种常用的食品抗氧化剂,从 出发合成 BHT 的方法有如下两种。下列说法不正确的是
A.
推测 BHT 在水中的溶解度小于苯酚
B.
BHT 与 都能使酸性 KMnO 4 退色
C.
方法一和方法二的反应类型都是加成反应
D.
BHT 与 具有完全相同的官能团
【单选题】Fill in the blanks by selecting suitable words from the word bank. You may not use any of the words more than one. The Internet has made English learning much easier. English leaners used to be ____ t...
A.
tedious
B.
obliged
C.
abundant
D.
beneficial
E.
bulk
F.
adjusted
【单选题】在DGPS中,按照覆盖区域的从小到大的排序为______。919
A.
广域差分GPS、广域增强系统、局域差分GPS
B.
局域差分GPS、广域差分GPS、广域增强系统
C.
广域差分GPS、局域差分GPS、广域增强系统
D.
广域增强系统、广域差分GPS、局域差分GPS
【简答题】(14分)碱式硫酸铁[Fe(OH)SO 4 ]是一种新型高效絮凝剂，常用于污水处理，在医疗上也可用于治疗消化性溃疡出血。工业上利用废铁屑(含少量氧化铝等)生产碱式硫酸铁的工艺流程如下所示： 部分阳离子以氢氧化物形式沉淀时溶液的pH如表所示： 沉淀物 Fe(OH) 3 Fe(OH) 2 Al(OH) 3 开始沉淀 2.3 7.5 3.4 完全沉淀 3.2 9.7 4.4 请回答下列问题： （1）加入...
【单选题】The Internet has a history of more than ___ years.
A.
sixty
B.
ten
C.
fifty
D.
twenty
【单选题】在DGPS中,按照覆盖区域从小到大的排序为:
A.
广域DGPS、广域增强系统、局域DGPS
B.
局域DGPS、广域DGPS、广域增强系统
C.
广域DGPS、局域DGPS、广域增强系统
D.
广域增强系统、广域DGPS、局域DGPS
【单选题】Which of the following was NOT one of the discoveries of the Pew study?
A.
The Internet has put us in touch with more people than expected.
B.
People use the Internet to get advice on careers, medical problems, and other questions.
C.
For many Americans, the Internet plays an important role in helping them make important decisions.
D.
Internet addiction is a growing problem among people who use computers.
【简答题】A．The local government. B．The internet user. C．Some special organization. D．None has been mentioned.
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