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【单选题】
关于pH对酶活性的影响叙述不正确的是
A.
影响必需基团解离状态
B.
酶在最适pH活性最强
C.
远离最适pH酶活性下降
D.
人体内多数酶最适pH是生理pH
E.
pH改变不能影响必需基团的解离状态
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参考答案：
举一反三
【单选题】不同信号在同一条信号线上分时传输的方式称为( )。
A.
总线复用方式
B.
串并行传输方式
C.
并行传输方式
D.
串行传输方式
查看完整题目与答案
【单选题】When initiating a DSC call-for public correspondence to coast station or another ship, the operator should key in() of the station to be called on the DSC terminal.
A.
a)、the MMSI
B.
the MID
C.
the four digit selcall number
D.
the five digit selcall number
查看完整题目与答案
【单选题】不同信号在同一条信号线上分时传输的方式称为()
A.
总线复用方式
B.
并串行传输方式
C.
并行方式传输
D.
串行传输方式
查看完整题目与答案
【单选题】What is usually the first step for a GMDSS radio operator to take when initiating a distress priority message via Inmarsat?
A.
By dialing the correct code on the telephone remote unit.
B.
By pressing a"Distress Button" or "Distress Hot Key(s)”on ffie equipment.
C.
By contacting the CES operator and announcing a distress condition is in existence.
D.
By contacting the CES operator using the radiotelephone distress procedure "Mayday".
查看完整题目与答案
【单选题】由于关税同盟内部取消了关税壁垒，从而使生产由本国国内转向同盟内最有效率的供应者，这种效应被称为（）。
A.
贸易创造效应
B.
贸易转移效应
C.
贸易扩大效应
D.
内部化效应
查看完整题目与答案
【单选题】What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?（）
A.
It will abort the transmission and set off an audible alarm that must be manually reset
B.
It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation
C.
It will initiate the DSC distress alert and default information will automatically be transmitted
D.
It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation
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【单选题】What is usually the first step for a GMDSS radio operator to take when initiating a distress priority message via INMARSAT?
A.
By dialing the correct code on the telephone remote unit.
B.
By press a “distress button” on the equipment
C.
By contacting the CES operator and announcing a distress condition is in existence
D.
By contacting the CES operator using the radiotelephone distress procedure “Mayday”…et
查看完整题目与答案
【单选题】下列哪种视程障碍现象出现的能见度范围与其它不同()
A.
雾
B.
雪暴
C.
沙尘暴
D.
霾
查看完整题目与答案
【单选题】Which of the following sentences should be avoided(避免) when initiating a conversation with a westerner?
A.
How are things going?
B.
How’s life?
C.
How much did you pay for that car?
D.
What a lovely day, isn't it?
查看完整题目与答案
【单选题】下列关于艾瑞克森的心理社会发展理论主要内容的描述哪项是错误的
A.
该理论强调文化及社会环境在人格发展中的重要作用
B.
人的发展包括生物、心理及社会三个方面的变化过程
C.
婴儿期的发展危机是自主对羞愧或疑虑
D.
学龄前期的发展危机是主动对内疚
E.
学龄期的发展危机是勤奋对自卑
查看完整题目与答案
相关题目：
【单选题】不同信号在同一条信号线上分时传输的方式称为( )。
A.
总线复用方式
B.
串并行传输方式
C.
并行传输方式
D.
串行传输方式
查看完整题目与答案
【单选题】When initiating a DSC call-for public correspondence to coast station or another ship, the operator should key in() of the station to be called on the DSC terminal.
A.
a)、the MMSI
B.
the MID
C.
the four digit selcall number
D.
the five digit selcall number
查看完整题目与答案
【单选题】不同信号在同一条信号线上分时传输的方式称为()
A.
总线复用方式
B.
并串行传输方式
C.
并行方式传输
D.
串行传输方式
查看完整题目与答案
【单选题】What is usually the first step for a GMDSS radio operator to take when initiating a distress priority message via Inmarsat?
A.
By dialing the correct code on the telephone remote unit.
B.
By pressing a"Distress Button" or "Distress Hot Key(s)”on ffie equipment.
C.
By contacting the CES operator and announcing a distress condition is in existence.
D.
By contacting the CES operator using the radiotelephone distress procedure "Mayday".
查看完整题目与答案
【单选题】由于关税同盟内部取消了关税壁垒，从而使生产由本国国内转向同盟内最有效率的供应者，这种效应被称为（）。
A.
贸易创造效应
B.
贸易转移效应
C.
贸易扩大效应
D.
内部化效应
查看完整题目与答案
【单选题】What does the DSC control unit do if the GMDSS radio operator fails to insert updated information when initiating a DSC distress alert?（）
A.
It will abort the transmission and set off an audible alarm that must be manually reset
B.
It will initiate the DSC distress alert but，as no information will be transmitted，rescue personnel will not be able to identify the vessel，its position or its situation
C.
It will initiate the DSC distress alert and default information will automatically be transmitted
D.
It will initiate the DSC distress alert，but any station receiving it will have to establish contact with the distressed vessel to determine its identity，position and situation
查看完整题目与答案
【单选题】What is usually the first step for a GMDSS radio operator to take when initiating a distress priority message via INMARSAT?
A.
By dialing the correct code on the telephone remote unit.
B.
By press a “distress button” on the equipment
C.
By contacting the CES operator and announcing a distress condition is in existence
D.
By contacting the CES operator using the radiotelephone distress procedure “Mayday”…et
查看完整题目与答案
【单选题】下列哪种视程障碍现象出现的能见度范围与其它不同()
A.
雾
B.
雪暴
C.
沙尘暴
D.
霾
查看完整题目与答案
【单选题】Which of the following sentences should be avoided(避免) when initiating a conversation with a westerner?
A.
How are things going?
B.
How’s life?
C.
How much did you pay for that car?
D.
What a lovely day, isn't it?
查看完整题目与答案
【单选题】下列关于艾瑞克森的心理社会发展理论主要内容的描述哪项是错误的
A.
该理论强调文化及社会环境在人格发展中的重要作用
B.
人的发展包括生物、心理及社会三个方面的变化过程
C.
婴儿期的发展危机是自主对羞愧或疑虑
D.
学龄前期的发展危机是主动对内疚
E.
学龄期的发展危机是勤奋对自卑
查看完整题目与答案
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