皮皮学，免费搜题
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【单选题】
蛋白质分子的元素组成特点是A.
含氮量约16％
B.
含大量的碳
C.
含少量的硫
D.
含大量的磷
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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
【简答题】He _______ his chair backwards and put his feet up on his desk while he was talking on the phone.
【单选题】David was standing on his chair to shout good news about gaining a new client to the rest of his colleagues. He fell off the chair and broke his arm. Who is responsible for the accident?
A.
David’s company
B.
The chair manufacturer
C.
David
D.
Both David and David’s company
【单选题】稳定单质在298K,100kPa下，下述正确的是()
A.
Smf ， D f Gmf 为零
B.
D f Hmf 不为零
C.
Smf 不为零 , △ f H 为零
D.
△ f Sm ，△ f Gm ，△ f H 均为零
【单选题】At the good new __ ___.
A.
up he jumped from his chair
B.
up jumped he from his chair
C.
from his chair did he jump up
D.
up from his chair did he jump
【单选题】稳定单质在 298 K 、 100 kPa 下,下述正确的是
A.
S m Ө 、 Δ f G m Ө 为零
B.
Δ f H m Ө 不为零
C.
S m Ө 不为零， Δ f H m Ө 为零
D.
S m Ө 、 Δ f G m Ө 、 Δ f H m Ө 均为零
【单选题】He felt his chair ___ at the time of the earthquake.
A.
moved
B.
to move
C.
is moving
D.
moving
【单选题】He felt his chair ___ at the time of earthquake.
A.
moved
B.
to move
C.
is moving
D.
moving
【单选题】关于熵，下列叙述中正确的是( )。
A.
298K，稳定单质的Smθ=0
B.
298K，纯物质的Smθ = 0
C.
298 K,一切纯物质Smθ>0
D.
反应过程中，随产物的生成，系统的熵值增大
相关题目：
【单选题】He felt his chair ___ at the time of the earthquake.
A.
moved
B.
to move
C.
is moving
D.
moving