观赏草
参考答案：
具有观赏价值的单子叶多年生草本植物。
—He says that my new car is a ________ of money.
—Don't you think those words are just sour grapes?[ ]
A. lack
B. load
C. question
D. waste
什么叫计量器具？它的作用是什么？
