正常成人体内的维生素C代谢活性池中最高储存峰值为()mg.
A.1500
B.2000
C.3000
D.4000
参考答案:C
On ____ Friday when Tom was having an art lesson, as he had no color pencils with him, he
drew _____ blue sun with his pen. [ ]
A. 不填; the
B. 不填; a
C. the; the
D. a; a
“明明是学人,偏偏叫人家你看不出来我是学谁”这句话是()。
A.是谭鑫培对周信芳说的
B.是梅兰芳对谭鑫培说的
C.是周信芳对谭鑫培的评价
D.是梅兰芳对裘盛戎的评价