画柿子的作画步骤:()
A、画柿子、画叶、画枝
B、画枝、画叶、画柿子
C、画叶、画枝、画柿子
D、画叶、画柿子、画枝
参考答案:B
Alan is a careful driver, but he drives _________ of my friends.
A.more carefully
B.less carefully
C.the most carefully
D.the least carefully
怀疑上消化道出血首选的检查为()。
A.X线胃肠钡餐透视
B.X线Ba灌肠透视检查
C.便潜血检查
D.B型超声检查
E.胃镜检查