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【单选题】
治疗震颤麻痹最佳联合用药是A.左旋多比多巴B.左旋多巴+卡比多巴+维生素B6。C.左旋多巴+维生
A.
治疗震颤麻痹最佳联合用药是 A.左旋多比多巴
B.
左旋多巴+卡比多巴+维生素B6。
C.
左旋多巴+维生素B6
D.
卡比多巴+维生素B6
E.
以上均不是
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【单选题】Read the section "Brothers Were Struggling In Icy Water." Which sentence explains why the brothers needed to be rescued?
A.
The swimmers were wearing T-shirts and shorts.
B.
The friends lifted the brothers onto their surfboards.
C.
The brothers were out for some fun with their family.
D.
They were pulled into deep water, said Dillon Cleavenger.
【单选题】美国总统尼克松访华的时间是()
A.
1972.1
B.
1972.2
C.
1973.2
D.
1974.2
【单选题】美国总统尼克松首次访华开启了历史性的破冰之旅,这次访华的时间是()。
A.
1971年
B.
1972年
C.
1973年
D.
1974年
【单选题】1972年美国总统尼克松访华前要求自带车辆,但被周总理婉言回绝:“我们中国有世界上最好的汽车,你们尽可放心”。当尼克松一行走出飞机时,所有的迎宾车辆全是加长型红旗轿车,令初次踏上中国土地的美国首脑大吃一惊。更令美国总统尼克松感到万分激动的是,中国总理周恩来把自己的()号红旗专车让给他,作为在华期间的专用轿车。
A.
00006
B.
00007
C.
00008
【多选题】下列哪种情况可能形成唐氏综合征 ? ——
A.
精子形成过程中,减数分裂时 21 号染色体不分离
B.
卵裂时 21 号染色体不分离
C.
卵裂时 21 号染色体丢失
D.
卵细胞形成时,减数分裂时 21 号染色体不分离
E.
组染色体倒位携带者的生育
【多选题】在一定温度下,将气体X和气体Y 各0.16mol充入10L 恒容密闭容器中,发生反应X(g)+Y(g)?2Z(g)△H<0,一段时间后达到平衡.反应过程中测定的数据如下表,下列说法不正确的是(  ) t/min 2 4 7 9 n(Y)/mol 0.12 0.11 0.10 0.10
A.
反应前2min的平均速率v(Z)=2.0×10 -5 mol/(L?min)
B.
其他条件不变,降低温度,反应达到新平衡前v(逆)>v(正)
C.
该温度下此反应的平衡常数K=1.44
D.
其他条件不变,再充入0.2 mol Z,平衡时X的体积分数增大
【单选题】No one in the factory but the brothers _____ that our factory will be closed because of the financial problem.
A.
knows
B.
know
C.
have known
D.
knew
【单选题】What did Adrian York do FIRST after the teens saw that the brothers needed help?
A.
He checked to see if they were breathing.
B.
He found someone on shore to call 911.
C.
He paddled to the brothers to help them.
D.
He went to shore to get help.
【单选题】The brothers argued about the shoes.
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】Which of the following statements is true about the relationship among the brothers?
A.
These is always suspicion among these brothers.
B.
Tristan and Samuel are jealous of Alfred’s success.
C.
The brotherhood has been through affection, collapse, and reconciliation.
D.
The deep and strong brotherhood remains the same throughout the film.
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