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【单选题】
寒凉药石膏、知母长期给药可使下列哪种中枢神经介质含量降低
A.
5-HT
B.
Ach
C.
NA
D.
GABA
E.
以上均非
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【单选题】Read the following paragraph from the section “Cold Temperatures Can Damage Orange Trees .” The predicted low temperature in Miami was 44 degrees . That was 15 degrees below the typical temperature fo...
A.
Tampa was as cold as 29 degrees.
B.
It was 44 degrees in Miami.
C.
Cold weather can hurt people.
D.
The NWS warned about winds.
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【判断题】采用双频微波测距仪可以较为准确地测定电离层折射对卫星测高的影响
A.
正确
B.
错误
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A.
逍遥
B.
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C.
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A.
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B.
Time Sequence
C.
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D.
Compare and Contrast
E.
Cause and Effect
F.
Addition (Enumeration) simple listing
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【单选题】电路最少由( )几部份组成。
A.
电阻、导线
B.
电阻、电源
C.
导线、电源
D.
负载、电源、导线
【简答题】The cold winds that blow off of the Arctic Ocean make the North Pole a very cold place. subject:______ object complement:______
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