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【单选题】
裸露病毒体的结构是
A.
核酸+包膜
B.
核心+衣壳+包膜
C.
核心+衣壳
D.
核衣壳+刺突
E.
核酸+蛋白质
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【单选题】. 某电池电动势与温度的关系为 E/V =1.01845 -4.05×10 -5 (t/℃ - 20) - 9.5×10 -7 (t/℃ - 20)2 298K 时,电池可逆放电: ( )
A.
放热
B.
吸热
C.
无热效应
D.
不能确定
【单选题】某电池电动势与温度的关系为: E /V = 1.01845 - 4.05×10 -5 ( t / °C - 20) - 9.5×10 -7 ( t / °C - 20) 2 。 298 K 时,电池可逆放电,则( )。
A.
Q > 0
B.
Q
C.
Q = 0
D.
不能确定
【简答题】Andy loved the first grade. He loved his teacher,Mrs.Parks. He loved playing s on the playground. He loved learning about dinosaurs and the solar system (恐龙和太阳系). Every morning Andy’s mother dropp...
【单选题】The revival of the railroad service will be immensely ______ for the Speedy movement of passengers and cargo.
A.
beneficial
B.
profitable
C.
beneficiary
D.
proficient
【单选题】某电池电动势与温度的关系为: E /V = 1.01845 - 4.05 × 10 -5 ( t / °C - 20) - 9.5 × 10 -7 ( t / °C - 20) 2 298 K 时,电池可逆放电 ,则:
A.
Q > 0
B.
Q < 0
C.
Q = 0
D.
不能确定
【简答题】A.physically B.immensely C.thoroughly D.secretly
【简答题】A.physically B.immensely C.secretly D.thoroughly
【单选题】男性, 3 5,岁,硬膜外麻醉病人,手术中突然出现意识不清、血压降低、呼吸及促,并迅速出现昏迷、呼吸心跳停止。应考虑病人出现了
A.
大出血
B.
脊翻神经损伤
C.
全脊髓麻醉
D.
过敏反应
E.
毒性反应
【单选题】______ there is a logical connection between all the things that happen in that immensely connected body of salted water that covers 71 percent of the surface of the earth.
A.
I dawn upon it that
B.
It dawns upon me that
C.
I dawn upon this that
D.
This dawns upon me that
【多选题】已知某电池电动势与温度的关系为E/V = 1.01845-4.05×10 -5 (T/K-293.15)-9.5×10 -7 (T/K-293.15) 2 ,则当电池可逆地产生2 mol电子的电荷量时,下列说法正确的是
A.
Δ r G m = -196.52 kJ/mol
B.
Δ r S m = -9.65 J/(K∙mol)
C.
Δ r H m = -199.40 kJ/mol
D.
该电池在 298.15K 的温度系数为 5.0 × 10 -5 V/K
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