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【单选题】
GB7258《机动车运行安全技术条件》规定，汽车驾驶员耳旁噪声声级不应大于（ ）。A.
80dB
B.
110dB
C.
90dB （A）
D.
120dB
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反馈参考答案：
举一反三
【单选题】听录音,完成下面的题目
A.
About 79 percent of people.
B.
More than 43 percent of people.
C.
More than 70% percent of people.
D.
About 57 percent of people.
【单选题】听录音,完成下面的题目
A.
It is almost equal to the number of emails sent every day.
B.
It is far more than the number of texts sent every day.
C.
It is far less than the number of emails sent every day.
D.
It is far less than the number of texts sent every day.
【简答题】听录音,完成下面的选择题和填空题。
【简答题】频率大于 HZ的机械波被称为超声波。
【单选题】请听录音,完成下面的题目
A.
Emailing.
B.
Texting.
C.
Making phone calls.
D.
Sending messages through social media sites.
【简答题】听录音,完成下面的问题
【简答题】听录音,完成下面的填空题
【单选题】From the mid 1980s, the Chinese government began to give top _____to scientific and educational development.
A.
preference
B.
primacy
C.
privilege
D.
priority
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