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【单选题】
Do you want to pay _____ cash or _____ credit card?A.
in in
B.
by by
C.
by in
D.
in by
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【判断题】玉米杂合体 Aa 的一个胚囊母细胞，减数分裂形成的4 个大孢子，含A 或a 的各占一半；而形成胚囊时，每个胚囊的 8 个核都含 A 基因或 8 个核都含 a 基因。
A.
正确
B.
错误
【单选题】The finding that children reared at home had low IQs at age 12 indicates
A.
parents fail to provide an adequate environment for their intelligence growth.
B.
educational daycare centers are the best place for children to grow up in.
C.
intellectual development and academic achievement of children are closely related.
D.
the age of 12 is a critical point in time for intellectual development in children.
【判断题】玉米杂合体 Aa 的一个胚囊母细胞,减数分裂形成的 4 个大孢子,含 A 或 a 的各占一半;而形成胚囊时,每个胚囊的 8 个核都含 A 基因或 8 个核都含 a 基因。
A.
正确
B.
错误
【单选题】The finding that children reared at home had low IQs at age 12 indicates
A.
educational day-care centers are the best place for children to grow up in
B.
parents fail to provide an adequate environment for their intelligence growth
C.
the age of 12 is a critical point in time for intellectual development in children
D.
intellectual development and academic achievement of children are closely related
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