已剥壳去皮的一粒花生米，是花生的（ ）
A．种子
B．果实
C．胚和子叶
D．胚
答案：D
— Did you have a good weekend?
— . I was busy studying for the test.
A．Sure
B．I think so
C．I am afraid not
D．I hope not
测试确定油气压力的标准是什么？
