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【多选题】
必需氨基酸和非必需氨基酸不同点 ( )A.
、在体内合成的速度和数量不同
B.
血液中的浓度取决于饲粮中相应氨基酸的浓度
C.
是否必须从饲粮中供给
D.
必需氨基酸为一定需要,非必需氨基酸为不必需要
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举一反三
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A.
The Mississippi River
B.
The Murray River
C.
The Mackenzie River
D.
The Severn River
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A.
St. Lawrence
B.
River Columbia
C.
River Shannon
D.
the Murray
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A.
a和c的碱基序列相同
B.
b和c的碱基序列相同
C.
a链中(A+T)/(G+C)的比值与b链中同项比值相同
D.
a链中(A+T)/(G+C)的比值与d链中同项比值不相同
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A.
Lake Burley Griffin
B.
River Murray
C.
River Darling
D.
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A.
Walkathon River.
B.
Severn River.
C.
Mackenzie River.
D.
Murray River.
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