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【单选题】
用马铃薯切块繁殖新个体，这种繁殖方式属于A.
嫁接
B.
营养繁殖
C.
扦插
D.
杂交
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【简答题】完形填空。 Li Lei is a student 1 Class Two, Grade Seven. He likes football very 2 . He often plays it after school. And he often goes home 3 . His home is 4 the school. His mother doesn't worry 5 him. One ...
【单选题】'What does your father do?' ' _______.'
A.
He likes football.
B.
He is 40.
C.
He is a doctor.
D.
She is a worker.
【简答题】（11分）有关物质的量的计算。 （1）有NaCl、CaCl 2 、AlCl 3 三种溶液，若溶质的物质的量相等，分别与足量的硝酸银溶液反应，则生成沉淀的物质的量之比为________________.若生成的沉淀的质量相等，则三种溶液中溶质的物质的量之比为__________。 （2）相同质量的SO 2 和SO 3 ，所含分子的数目之比为_________；所含O的物质的量之比为________。...
【单选题】----- He likes football very much.
A.
---- ____________
B.
So do I
C.
I did so
D.
So I like
E.
So I do
【单选题】He likes football , so he football every day.
A.
play ; play
B.
playing ; play
C.
playing ; plays
D.
plays ;plays
【单选题】He likes football very much. He wants _____ a football player. He likes football very much. He wants _____ a football player.
A.
is
B.
being
C.
to be
D.
become
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