合成脂肪酸的乙酰COA主要来自()
A.糖的分解代谢
B.脂肪酸的分解代谢
C.胆固醇的分解代谢
D.生糖氨基酸的分解代谢
E.生酮氨基酸的分解代谢
参考答案:A
识别抗原抗体复合物的补体是()
A.C1q
B.C1r
C.C1s
D.C2
E.C1qrs
The order to enter the lifeboats will be given from the().
A.bridge
B.forward station
C.aft station
D.any hold in which the stevedores are working