胆汁酸合成的关键酶是()
A.3α羟化酶
B.6α羟化酶
C.5α羟化酶
D.4α羟化酶
E.7α羟化酶
参考答案:E
Recently , a number of Taobao sellers have begun offering garments ____styles worn by China’s first lady PengLiyuan.
A.base on
B.bases on
C.basing on
D.based on
通过隧道时,不得超车。