单项选择题

A．Getting the work done in mixed groups of sizes.
B．Having clear division of labor as a society.
C．Each ant helping with all the tasks.
D．All size groups are ideally suited to their jobs.
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单项选择题
A．Thursday.B．Saturday.C．The day after tomorrow.D．Six months later.
A．Thursday.
B．Saturday.
C．The day after tomorrow.
D．Six months later.
单项选择题
A．She wanted to be a dance teacher.B．She wants to become a professional dancer.C．She wants to be trained as a dance designer.D．She wants to be a professor on current politics.
A．She wanted to be a dance teacher.
B．She wants to become a professional dancer.
C．She wants to be trained as a dance designer.
D．She wants to be a professor on current politics.
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