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【单选题】
原核生物的信使RNA包含一些是其功能必需的特征部分，它们是：
A.
启动子，SD序列，起始密码子，终止密码子，茎环结构。
B.
启动子，转录起始位点，前导序列，开放阅读框(之前有SD序列，且被间隔序列隔开)，尾巴和茎环结构。
C.
转录起始位点，SD序列在ORFS前边且被间隔序列隔开的开放阅读框，尾巴，茎环结构。
D.
转录起始位点，前导序列，SD序列在前边且被间隔序列隔开的开放阅读框，尾巴。
E.
转录起始位点，前导序列，SD序列紧接被间隔序列隔开的开放阅读框，尾巴。
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举一反三
【单选题】Every year about 4,000,000 Americans are arrested and accused of crimes ranging from theft and traffic violations to murder. The Supreme Court(最高法院) has ruled that anyone charged with a crime has cert...
A.
governed
B.
guided
C.
decided
D.
controlled
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【单选题】早产儿,男,胎龄34周,体重2300g,生后第1无基本情况可。母乳尚未分泌。为预防新生儿低血糖,正确的护理措施是( )
A.
给予肾上腺皮质激素
B.
静脉输注葡萄糖液
C.
及时喂葡萄糖水
D.
口服葡萄糖水结合静脉推注葡萄糖液
E.
及时喂一段配方奶
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【单选题】按位加法运算指令属于__________。
A.
算术运算指令
B.
逻辑运算指令
C.
移位操作指令
D.
时钟周期
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【单选题】横焊过程中,熔化母材的主要是( )。
A.
电阻热
B.
物理热
C.
化学热
D.
电弧热
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【单选题】During the Second World War, about 375,000 civilians died in the United States and about 408,000 members of the United States armed forces died overseas. On the basis of those figures, it can be concl...
A.
Counting deaths among members of the armed forces who served in the United States in addition to deaths among members of the armed forces serving overseas.
B.
Expressing the difference between the numbers of deaths among civilians and members of the armed forces as a percentage of the total number of deaths.
C.
Separating deaths caused by accidents during service in the armed forces from deaths caused by combat injuries.
D.
Comparing death rates per thousand members of each group rather than comparing total numbers of deaths.
E.
Comparing deaths caused by accidents in the United States to deaths caused by combat in the armed forces.
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【简答题】混凝土管道安装施工按照其接口形式可分为 、 和 三种。
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【多选题】.配制NaOH标准溶液,以下操作正确的是( )。
A.
先配成饱和溶液
B.
装于聚乙烯塑料瓶中
C.
密塞、放置数日再标定
D.
定时用煮沸并冷却过的蒸馏水
E.
用酚酞作指示剂
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【单选题】按位加法运算指令属于()。
A.
算术运算指令
B.
逻辑运算指令
C.
移位操作指令
D.
串操作指令
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【单选题】How many words were contained in the first dictionary?
A.
About 4, 000.
B.
About 1, 000.
C.
About 3, 000.
D.
About 2, 000.
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【单选题】Every year about 4,000,000 Americans are arrested and accused of crimes ranging from theft and traffic violations to murder. The Supreme Court has ruled that anyone charged with a crime has certain ri...
A.
governed
B.
decided
C.
guided
D.
controlled
查看完整题目与答案
相关题目：
【单选题】Every year about 4,000,000 Americans are arrested and accused of crimes ranging from theft and traffic violations to murder. The Supreme Court(最高法院) has ruled that anyone charged with a crime has cert...
A.
governed
B.
guided
C.
decided
D.
controlled
查看完整题目与答案
【单选题】早产儿,男,胎龄34周,体重2300g,生后第1无基本情况可。母乳尚未分泌。为预防新生儿低血糖,正确的护理措施是( )
A.
给予肾上腺皮质激素
B.
静脉输注葡萄糖液
C.
及时喂葡萄糖水
D.
口服葡萄糖水结合静脉推注葡萄糖液
E.
及时喂一段配方奶
查看完整题目与答案
【单选题】按位加法运算指令属于__________。
A.
算术运算指令
B.
逻辑运算指令
C.
移位操作指令
D.
时钟周期
查看完整题目与答案
【单选题】横焊过程中,熔化母材的主要是( )。
A.
电阻热
B.
物理热
C.
化学热
D.
电弧热
查看完整题目与答案
【单选题】During the Second World War, about 375,000 civilians died in the United States and about 408,000 members of the United States armed forces died overseas. On the basis of those figures, it can be concl...
A.
Counting deaths among members of the armed forces who served in the United States in addition to deaths among members of the armed forces serving overseas.
B.
Expressing the difference between the numbers of deaths among civilians and members of the armed forces as a percentage of the total number of deaths.
C.
Separating deaths caused by accidents during service in the armed forces from deaths caused by combat injuries.
D.
Comparing death rates per thousand members of each group rather than comparing total numbers of deaths.
E.
Comparing deaths caused by accidents in the United States to deaths caused by combat in the armed forces.
查看完整题目与答案
【简答题】混凝土管道安装施工按照其接口形式可分为 、 和 三种。
查看完整题目与答案
【多选题】.配制NaOH标准溶液,以下操作正确的是( )。
A.
先配成饱和溶液
B.
装于聚乙烯塑料瓶中
C.
密塞、放置数日再标定
D.
定时用煮沸并冷却过的蒸馏水
E.
用酚酞作指示剂
查看完整题目与答案
【单选题】按位加法运算指令属于()。
A.
算术运算指令
B.
逻辑运算指令
C.
移位操作指令
D.
串操作指令
查看完整题目与答案
【单选题】How many words were contained in the first dictionary?
A.
About 4, 000.
B.
About 1, 000.
C.
About 3, 000.
D.
About 2, 000.
查看完整题目与答案
【单选题】Every year about 4,000,000 Americans are arrested and accused of crimes ranging from theft and traffic violations to murder. The Supreme Court has ruled that anyone charged with a crime has certain ri...
A.
governed
B.
decided
C.
guided
D.
controlled
查看完整题目与答案
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