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【简答题】
二极管具有性。
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参考解析：
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皮皮学刷刷变学霸
举一反三
【单选题】小儿易于发生营养性疾病的原因是
A.
小儿外观和身体各部分比例都在不断变化
B.
年龄越小生长越快，所需营养物质相对较成人多
C.
不同年龄小儿有不同的生理生化正常值
D.
小儿各脏器功能发育不成熟
E.
小儿体液免疫和细胞免疫功能不健全
【单选题】_______ from her parents, she was left with her two young sisters--aged three and seven.
A.
Being separated
B.
Having been separated
C.
Having separated
D.
Had been separated
【单选题】Xiao Li said that he ____ in that small village then and didn't want to leave there.
A.
got used to live
B.
was used to live
C.
used to living
D.
was used to living
【单选题】Mother used to live in a poor village,____________?
A.
used she
B.
usedn’t she
C.
didn’t he
D.
did he
【单选题】Her parents left her _________ her own friends.
A.
to choose
B.
choosing
C.
for choosing
D.
in choosing
【单选题】Mother used to live in a poor village,___?
A.
used she
B.
usedn’t she
C.
didn’t he
D.
did she
【单选题】She ______ a letter to her parents since she left.
A.
didn’t write
B.
haven’t got
C.
didn’t have
D.
haven’t write
【单选题】She will always _______ in mind what her parents told her when she left home.
A.
place
B.
keep
C.
control
D.
put
【单选题】All the poor girl had got was that little _____ her parents had left her.
A.
expense
B.
weight
C.
advantage
D.
legacy
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