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【多选题】
关于蒸发量和蒸散量，叙述错误的是（）。A.
蒸发量是指一定时段内，液态或固态转变成气态, 散布到空气中的量
B.
蒸散量是指土壤蒸发和植物蒸腾的总耗水量
C.
制约蒸散量的因素包括由大气的干燥程度、辐射条件及风力大小所综合决定的蒸发势
D.
制约蒸散量的因素包括由土壤湿润程度和导水能力所决定的土壤供水状况
E.
制约蒸散量的因素包括植被状况,具体包括植物水分输导组织、叶片气孔数量与大小以及群体结构对湍流交换系数的影响
F.
蒸发量和蒸散量是一回事，只是使用场合不同而已
G.
蒸发量和蒸散量在数量上基本相同
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【单选题】The electron configuration of a neutral atom is 1s 2 2s 2 2p 6 3 s 2 3p 6 4 s 2 , t he element is
A.
K
B.
Ca
C.
Sc
D.
Mn
【单选题】What is the primary purpose of PepsiCo ’ s s ustainable a griculture s upport p olicy ?
A.
T o secure their supply chain into the future;
B.
To fulfill the company ’ s social responsibility;
C.
To gain good reputation for the company;
【单选题】In a singly linked list, a given node by a pointer q pointing is a successor(后继) of the node that is pointed by p pointer, if inserting a node s into p and q, then ( )need to be accomplished.
A.
s->next=q; p->next=s;
B.
p->next=s->next; s->next=p;
C.
q->next=s->next; s-next=p;
D.
p->next=s; s->next=q;
【单选题】A company that is losing money will have a P/E ratio of what?______.
A.
Negative P/E
B.
Very small P/E
C.
It does not have a P/E
D.
None of the above
【单选题】The correct operation for inserting a pointer of a node S after a pointer P in a single linked list is: ( ).
A.
s->link=p->link; p->link=s;
B.
p->link=s; s->link=p->link;
C.
p->link=s; p->link=s->link;
D.
p->link=s->link; p->link=s;
【单选题】A contact is formed between a metal and a p-type semiconductor. This contact is ( )ifΦm>Φs.
A.
homojunction
B.
heterojunction
C.
ohmic contact
D.
rectifying contact
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