皮皮学，免费搜题
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搜题
【单选题】
据统计,我国现存姓氏有()个A.
2万多
B.
5300多
C.
3500多
D.
5万
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参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】Consider the following structure:
A.
mg src="http://p.ananas.chaoxing.com/star3/origin/55f678ade4b040cfea178859.png">
B.
is structure is best described as which of the following?
C.
An amino acid
D.
A dipeptide
E.
A tripeptide
F.
A tetptide
G.
A pentapeptide
【单选题】Consider the following structure: This structure is best described as which of the following?
A.
An amino acid 氨基酸
B.
A dipeptide 二肽
C.
A tripeptide 三肽
D.
A tetptide 四肽
E.
A pentapeptide 五肽
【单选题】Consider the cornfield with soil that had an amino sugar N content of 350 mg/kg in Study 2. Based on Figure 2 and other information provided, was the soil in the cornfield responsive or nonresponsive?
A.
Responsive, because the yield did not increase.
B.
Responsive, because the yield increased.
C.
Nonresponsive, because the yield did not increase.
D.
Nonresponsive, because the yield increased.
【单选题】Consider the following structure: This structure is best described as which of the following?
A.
An amino acid
B.
A dipeptide
C.
A tripeptide
D.
A tetptide
E.
A pentapeptide
【单选题】Consider the amino acid shown below. The configuration about which atom will determine whether the amino acid is in the D or L configuration?
A.
如图
B.
如图
C.
如图
D.
如图
【单选题】下列关于浅昏迷的描述错误的是
A.
BP、P、R多无变化
B.
吞咽、咳嗽反射存在
C.
压迫眶上神经有痛苦表情
D.
大声呼唤可睁眼,但不能回答
E.
大小便失禁或潴留
【单选题】Consider the amino acid shown below. The configuration about which atom will determine whether the amino acid is in the D or L configuration? 以下所示的氨基酸,哪个原子的构型将决定氨基酸是 D还是L的构型?
A.
如图
B.
如 图
C.
如图
D.
如 图
E.
如图。
【单选题】Consider the following structure: This structure is best described as which of the following?
A.
An amino acid
B.
A dipeptide
C.
A tripeptide
D.
A tetptide
E.
A pentapeptide
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