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【单选题】
有关氮平衡的正确叙述是A.
每日摄入的氮量少于排出的氮量,为负氮平衡
B.
氮总平衡多见于健康的孕妇
C.
氮平衡实质上表示每日氨基酸进出人体的量
D.
氮总平衡常见于儿童
E.
氮正平衡、氮负平衡均见于正常成人
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举一反三
【单选题】Temperatures in the United States ________ measured according to the Fahrenheit Scale, on which 32 degrees ______ the freezing point of water and 212 degrees the boiling point． [ ]
A.
are; is
B.
are; are
C.
is; are
D.
is; is
【简答题】Higher temperatures in the United States have encouraged disease-carrying organisms which spread ______ such as malaria.
【简答题】temperatures in the underground world would remain equable and nearly ( ).
【单选题】Replace the underlined word:Low temperatures in the winter can derangemetabolism, freeze tissues, reduce the availability of the food and water, or cause mechanical injuries.
A.
accelerate
B.
disorder
C.
stabilize
D.
assist
【单选题】Temperatures in the UK in coldest months could be________.
A.
7-8 degree centigrade
B.
-5 - 0 degree centigrade
C.
3-6 degree centigrade
D.
0-3 degree centigrade
【简答题】but muggy for most of the state, with the _________temperatures in the low to mid 90s.
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