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【单选题】
下列藻类生活史中,孢子体占优势的异形世代交替是()
A.
B.
C.
海带
D.
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【单选题】在全国啦啦操各类比赛中,对于规定动作比赛参赛人数及要求是( )
A.
每队参赛人数为8—20人,性别不限 不可以有替补队员
B.
每队每项参赛人数为8—24人,性别不限 每队可有4名替补队员
C.
每队参赛人数为8—24人,性别不限 每队可有4名替补队员
D.
每队每项参赛人数为8—20人,性别不限 每队可有4名替补队员
【单选题】一氧化碳中毒根据雪中的COHb浓度分型,中度一氧化碳中毒患者的COHb的浓度为
A.
10%~20%
B.
20%~30%
C.
30%~40%
D.
50%~60%
E.
60%~70%
【单选题】关于尿素合成的叙述正确的是
A.
合成1分子尿素消耗2分子ATP
B.
氨基甲酰磷酸在肝细胞胞液中形成
C.
合成尿素分子的第二个氮子由谷氨酰胺提供
D.
鸟氨酸生成瓜氨酸是在胞液中进行
E.
尿素循环中鸟氨酸.瓜氨酸.精氨酸不因参加反应而消耗
【简答题】The following sentences are about negotiating the prices. Read them and put them in the right column. I’m sure the prices we quoted are reasonable. I’m not sure I agree with you there. Your ...
【单选题】---Don’t you think the movie is worth seeing? ---Worth seeing? I don’t think there is ______ the
A.
5. ---Don’t you think the movie is worth seeing? ---Worth seeing? I don’t think there is ______ the one we saw last week. A.nothing as
B.
anything like
C.
nothing as
D.
something as
【简答题】阅读下面短文,掌握其大意,然后从36-45各题所给的A、B、C、D四个选项中,选出一个最佳答案。 I don’t think there is any one being as interested in food as I. We lived on a farm in Lincolnshire and had a good 36 . She made fantastic English food...
【单选题】--- Mrs. Brown, I don’t think we can get there on time by bike. --- You mean it’s ___________ for us to take a taxi?
A.
necessary
B.
important
C.
possible
D.
difficult
【单选题】规定动作啦啦操参赛人数为()?
A.
8-20人
B.
15-30人
C.
8-24人
D.
15-24人
【单选题】关于尿素合成的叙述正确的是
A.
2分子氨和1分子CO2经鸟氨酸循环合成1分子尿素
B.
肝、肾、脑等组织含有合成尿素的酶
C.
每合成1分子尿素消耗4分子ATP
D.
整个过程在线粒体内进行
E.
每进行一次鸟氨酸循环产生2分子尿素
【单选题】Decide whether each of the following statement is acceptable as request in a business letter. Last summer, my husband and I went to the north of your country. We enjoyed the cool weather and had a goo...
A.
Acceptable
B.
Unacceptable
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