某元素的原子在化学反应中容易失去2个电子,则该元素的原子结构示意图可能是( )
A.
B.
C.
D.
答案:D
Jenny is an English girl. She is a nice girl , and she is my good friend. My name’s Amy. My father is John. My mother is Helen. Jack is my brother . I like(喜欢) them. I like singing. Jack likes reading. My favorite(最喜欢的) color is blue.
小题1: Jenny is ____________.
A.a English boy
B.a English girl
C.an English boy
D. an English girl小题2:Jenny is Amy’s __________.
A.mother
B.sister
C.friend
D.teacher小题3:My mother is __________.
A.Jack
B.Jenny
C.Amy
D.Helen
“同病异治”中,不同的是()
A.病
B.证
C.症
D.病性
E.以上都不是