单选题
交通银行
2015-12-06
Passengrs can __________ the amount of light they receive by using the black switch located on their overhead panel.
A．supervise
B．control
C．exchange
D．trade
参考答案
B
答案解析
句子表示“使用开关调节光度”，因此动词B意为“调节，控制”为正确答案。
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