胆汁酸合成的限速酶是
A．1-α-羟化酶
B．12-α-羟化酶
C．HMG CoA还原酶
D．HMG CoA合酶
E．7-α-羟化酶
参考答案：E
The visit of the police was _________ the lost child .
A．connected with
B．joined with
C．connecting with
D．joined to
馏程是指液体燃料的（）范围。
A、熔点
B、融点
C、沸点
D、冷滤点
