在温室拱棚内采取（）方式，可以提高土温，降低空气湿度，减轻病害发生程度。
参考答案：高畦地膜覆盖
大黄的功效是（）。黄芩的功效是（）。
A.散瘀解毒消痈
B.清热安胎
C.祛痰止咳
D.泻火除烦
E.泻下通便
Many people felt it was a pity that the ancient tower was and a modern building was being built. [ ]
A.pulled off
B.pulled down
C.pulled up
D.pulled in
