下列各项，不属病色的是（）。
A.面色淡白
B.面色红赤
C.红黄隐隐
D.面色青紫
E.面色晦暗
参考答案：C
If they ______ what I was saying, they’d know what I was talking about.
A．took the trouble to listen to
B．had trouble listening to
C．take the trouble to listen to
D．have trouble listening to
比较世界农业发展3个阶段的特征。我国农业的发展现在处于哪一个阶段？
