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美国国家科学院预言：在2014年的某一天，美国南部的一些城市，在五彩斑斓的极光光幕过后，电网会突然变得闪烁不定，灯光在瞬时明亮后将会停电，一分半钟之后，这个大停电现象将会遍及美国整个东部地区，甚至整个欧洲以及中国、日本等区域也会同样经历这样的灾难，而这场灾难仅仅源于太阳打了一个强烈的“喷嚏”。据此回答下列问题。 小题1:材料中所述的太阳打了强烈的“喷嚏”极有可能是(   ) A．太阳耀斑爆发 B．太阳爆炸 C．太阳辐射增强 D．太阳辐射减弱 小题2:该“喷嚏”还可能产生的明显影响不包括(   ) A．短波通讯中断 B．信鸽丢失 C．指南针失灵 D．地球公转速度的变化
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参考答案：
举一反三
【单选题】测量蛙坐骨神经干动作电位属于下列哪一层次的研究?
A.
细胞水平
B.
分子水平
C.
整体水平
D.
器官水平
查看完整题目与答案
【简答题】Please write down the four keys that can help you stand out in a job interview.
查看完整题目与答案
【单选题】A 30-year-old female patient presents with a new onset of peripheral edema. Physical examination finds hypertension and bilateral pedal edema. Urinalysis finds massive proteinuria, and evaluation of h...
A.
Granular pattern of IgA and C3
B.
Granular pattern of IgG and C3
C.
Linear pattern of IgD and C4
D.
Linear pattern of IgE and C4
E.
Linear pattern of IgM and C3
查看完整题目与答案
【单选题】In microscopy, _________________ is the defined as the ability to separate two or more objects that are close together and show them as distinct entities.
A.
magnification
B.
contrast
C.
amplification
D.
resolution
E.
dissection
查看完整题目与答案
【简答题】旅游角色
查看完整题目与答案
【简答题】个体在扮演角色时所遭遇的心理困境即() A角色规范 B角色期待 C角色冲突 D旅游角色
查看完整题目与答案
【单选题】The following description of lipoid nephrosis is incorrect
A.
The glomerulus did not change significantly under light microscopy
B.
Numerous lipid deposits are present in renal tubular epithelial cells
C.
The lesion can be completely recovered
D.
IgG and C3 deposits were often detected by immunofluorescence
E.
Under electron microscope, foot process of podocytes fuse
查看完整题目与答案
【判断题】新鲜的虾,虾肉结实,有弹性,尾节弯曲性强,无腥味,无臭味。
A.
正确
B.
错误
查看完整题目与答案
【判断题】新鲜的虾,虾肉结实,有弹性,尾节弯曲性强,无臭味,也无腥味。
A.
正确
B.
错误
查看完整题目与答案
【单选题】It is well known that DNA polymerases synthesize DNA only in the 5' to 3' direction. Yet, at the replication fork, both strands of parental DNA are being replicated with the synthesis of new DNA. An e...
A.
A different DNA polymerase replicates the complementary DNA strand as a series of small fragments.
B.
A 3' to 5' DNA polymerase is active in cells with high rates of DNA replication.
C.
DNA synthesis on complementary strand produces small 5' to 3' fragments that are continuously ligated together.
D.
DNA replication switch strands every 100 nucleotides, a detail not resolved by microscopy.
E.
DNA synthesis on the complementary strand does not use RNA primers.
查看完整题目与答案
相关题目：
【单选题】测量蛙坐骨神经干动作电位属于下列哪一层次的研究?
A.
细胞水平
B.
分子水平
C.
整体水平
D.
器官水平
查看完整题目与答案
【简答题】Please write down the four keys that can help you stand out in a job interview.
查看完整题目与答案
【单选题】A 30-year-old female patient presents with a new onset of peripheral edema. Physical examination finds hypertension and bilateral pedal edema. Urinalysis finds massive proteinuria, and evaluation of h...
A.
Granular pattern of IgA and C3
B.
Granular pattern of IgG and C3
C.
Linear pattern of IgD and C4
D.
Linear pattern of IgE and C4
E.
Linear pattern of IgM and C3
查看完整题目与答案
【单选题】In microscopy, _________________ is the defined as the ability to separate two or more objects that are close together and show them as distinct entities.
A.
magnification
B.
contrast
C.
amplification
D.
resolution
E.
dissection
查看完整题目与答案
【简答题】旅游角色
查看完整题目与答案
【简答题】个体在扮演角色时所遭遇的心理困境即() A角色规范 B角色期待 C角色冲突 D旅游角色
查看完整题目与答案
【单选题】The following description of lipoid nephrosis is incorrect
A.
The glomerulus did not change significantly under light microscopy
B.
Numerous lipid deposits are present in renal tubular epithelial cells
C.
The lesion can be completely recovered
D.
IgG and C3 deposits were often detected by immunofluorescence
E.
Under electron microscope, foot process of podocytes fuse
查看完整题目与答案
【判断题】新鲜的虾,虾肉结实,有弹性,尾节弯曲性强,无腥味,无臭味。
A.
正确
B.
错误
查看完整题目与答案
【判断题】新鲜的虾,虾肉结实,有弹性,尾节弯曲性强,无臭味,也无腥味。
A.
正确
B.
错误
查看完整题目与答案
【单选题】It is well known that DNA polymerases synthesize DNA only in the 5' to 3' direction. Yet, at the replication fork, both strands of parental DNA are being replicated with the synthesis of new DNA. An e...
A.
A different DNA polymerase replicates the complementary DNA strand as a series of small fragments.
B.
A 3' to 5' DNA polymerase is active in cells with high rates of DNA replication.
C.
DNA synthesis on complementary strand produces small 5' to 3' fragments that are continuously ligated together.
D.
DNA replication switch strands every 100 nucleotides, a detail not resolved by microscopy.
E.
DNA synthesis on the complementary strand does not use RNA primers.
查看完整题目与答案
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