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【简答题】
简要叙述边坡类型的分类方法。
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参考答案:
举一反三
【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
【简答题】停留时间对裂解反应有何影响?
【判断题】电机的输出功率小于额定功率时称为轻载运行。
A.
正确
B.
错误
【单选题】From the mid-1980s, the Chinese government began to give top ______to scientific and educational development.
A.
preference
B.
primacy
C.
privilige
D.
priority
【单选题】From the mid-1980s, the Chinese government began to give top ___ to scientific and enducationa development.
A.
preference
B.
primacy
C.
privilege
D.
priority
【简答题】频率大于 HZ的机械波被称为超声波。
【判断题】From the mid-1980s through the mid-1990s, the percentage of consumers reporting that they were very concerned about the nutritional content of the food they ate fell slightly.
A.
正确
B.
错误
【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
【单选题】From the mid-1980s, the Chinese government began to give top____ to scientific and education development.
A.
preference
B.
primacy
C.
privilege
D.
priority
【单选题】频率()被称为超声波?
A.
10000Hz
B.
1000Hz以下
C.
20000Hzy以下
D.
20000Hz以上
E.
1000以上
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