单项选择题

Indeed, ______ may develop in behavior occurring between different species.

A．expectation
B．reciprocation
C．specification
D．visualization
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单项选择题
Don't expect young children to be as ______ with the scenery as you are.
A．allured
B．bewildered
C．confounded
D．enchanted
单项选择题
Some women, particularly those over 35 years of age, seem to be more ______ more serious problems such as clots in veins if they smoke heavily.
A．blamable
B．attributable to
C．vulnerable to
D．responsible for
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