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单项选择题

The scientists have absolute freedom as to what research they think it best to______.

A．engage
B．devote
C．seek
D．pursue
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热门试题

单项选择题What is the probable relationship between the two speakers

A．Salesman and customer.
B．Expert on jewelry and his wife.
C．Estate agent and client.
D．Husband and wife.

单项选择题A．virtuallyB．remarkablyC．ideallyD．preferably

A．virtually
B．remarkably
C．ideally
D．preferably