单项选择题

Although most people who acquire West Nile have no ------- and those who do normally suffer little more than flu-like illness, it is believed they still can carry ------- amounts of the virus in their blood for several days.

A． recourse … negligible
B． symptoms … minute
C． cure … significant
D． fever … active
E． hope … incipient
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单项选择题
Handedness can be influenced and changed by social and cultural mechanisms, as can be evidenced by the fact that teachers have been known to force children to switch from using their left hand to using their right hand for writing and that some more ------- societies show less left-handedness in their populations than other more------- societies.
A． restrictive … permissive
B． bigoted … tolerant
C． liberal … suppressive
D． dominating … plural
E． intriguing … monotonous
单项选择题
In the 160 years in which handedness has been studied we have learned quite a lot, but we still cannot precisely describe what causes humans ------- to use one hand over the other, or why human populations are ------- toward right-hand use rather than left-hand use.
A． infrequently … prejudiced
B． habitually … neutral
C． preferentially … biased
D． perennially … disinterested
E． invariably … indisposed
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