脂酸合成的中间产物
A．丙酰CoAB．丙酮C．丙酮酸D．丙二酰CoAE．丙二酸
参考答案：D
_____ does it take him to walk to the park every day? [ ]
A. How far
B. How often
C. How long
D. How much
欲了解津液变化的情况，应观察舌苔的
A．厚薄
B．润燥
C．腐腻
D．剥落
E．有根无根
