问题
选择题
Her politics _____ neither conservative nor liberal. [ ]
a. is
b. are
c. was
d. has been
答案
b
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Her politics _____ neither conservative nor liberal. [ ]
a. is
b. are
c. was
d. has been
b
2H2O+O2↑，实验室中利用该反应，选用下图所示装置可制取氧气。请回答下列问题：