调节胰岛素分泌的最重要的因素是()。
A.血糖浓度
B.血脂浓度
C.血钙浓度
D.肾上腺素
E.胃肠激素
参考答案:A
Transit, a car made in Jiangxi Province, was sold nearly 50 000 units in 2012, with the total value ________ it was in 2008.
A.more than three times what
B.three more times than that
C.over three times than what
D.over three times of that
由视临界温度和临界压力决定的气体状态称为临界状态。