皮皮学,免费搜题
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搜题
【单选题】
左心室增大可出现
A.
剑突下搏动
B.
负性心尖搏动
C.
胸骨上窝搏动
D.
抬举性心尖搏动
E.
胸骨左缘第3-4肋间搏动
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皮皮学刷刷变学霸
举一反三
【单选题】下列哪一种情况可以通过增加[S]的办法减轻抑制程度?
A.
竞争性可逆抑制作用
B.
非竞争性可逆抑制作用
C.
反竞争性可逆抑制作用
D.
不可逆抑制作用
E.
酶的失活作用
【单选题】Which of the following statements is not true according to the passage?
A.
A visa letter of invitation is always a deciding factor in a government’s decision to issue or not issue a visa.
B.
A visa letter of invitation sometimes is helpful for an applicant to meet portions of the entry requirements.
C.
The visa letter of invitation writing process should begin 6 months before the Visit.
【判断题】根据我国法律规定,涉外民事争议的解决须以另一涉外民事关系的确认为前提时,人民法院应当根据该先决问题自身的性质确定其应当适用的法律。
A.
正确
B.
错误
【多选题】下列有关青霉素类和头孢菌素类抗生素结构的叙述正确的有
A.
都有一个四元的β-内酰胺环,且均与一个五元环或六元环稠合
B.
β-内酰胺环是平面结构,但与稠合环不共平面
C.
C2位(即与N相邻的碳原子)连接一个羧基
D.
β-内酰胺环的α位连接一个酰胺侧链
【单选题】当按压EMER电门时,所有乘务员面版上将显示()
A.
EMER CALL
B.
EMERGENCY INCOMING
C.
EMERGENCY CALL
【单选题】EMER
A.
撤离
B.
紧急情况
【单选题】Which statement is NOT correct?
A.
672 Chinese tourist agencies have been approved to organize tourist groups to Russia.
B.
One million Chinese are expected to visit Russia this year.
C.
China nationals in an approved tour group, will be visa-free to entry to Russia.
D.
The number of tourists between China and Russia increased by 30% last year.
【单选题】To____ an entry visa is very difficult now.
A.
appeal for
B.
apply for
C.
apply in
D.
appeal in
【单选题】听力原文: Chinese nationals will be entitled to visa-free entry to Russia starting in August this year, a senior Russian tourist official said yesterday in Beijing, as long as they go in an approved and a...
A.
672 Chinese tourists agencies have visited Russia.
B.
Chinese nationals can visit Russia in tour group.
C.
Russian nationals in an approved tour group will be visa-free to entry to China.
D.
Chinese nationals in an approved tour group will be visa-free 1o entry to Russia.
【简答题】完成句子。 1. 昨天晚上他们陪着万先生去散步了。 They ________ ________ ________ ________ with Mr. Wan last night. 2. 在我们学校大部分男孩喜欢踢足球。 ________ ________ in our school ________ ________ soccer.
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