单项选择题

A．The nuclear transfer
B．The process taking DNA
C．The normal reproductive process
D．The creation of cells
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单项选择题
A．He doesn’t have enough money to buy a printer now.B．He’s not sure how much a printer costs.C．He’ll buy a computer later this week.D．He lost the money he was saving.
A．He doesn’t have enough money to buy a printer now.
B．He’s not sure how much a printer costs.
C．He’ll buy a computer later this week.
D．He lost the money he was saving.
单项选择题
A．looked overB．looked intoC．looked down uponD．looked up to
A．looked over
B．looked into
C．looked down upon
D．looked up to
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