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【简答题】
一弦上的驻波表达式为 y = 0.1cos(xπ) cos(10πt) (SI) 。形成该驻波的两个反向传播的行波的波长为 ____ m ,频率为 ____ Hz 。
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反馈参考答案：
举一反三
【简答题】现代仪器分析法有何特点?它的测定对象与化学分析法有什么不同?
【单选题】第十一章22.外国投资者与中国投资者依法设立的娱乐场所()
A.
只能是中外合资经营
B.
只能是中外合作经营
C.
只能是中外合资经营或者中外合作经营
D.
可以是中外合资经营、中外合作经营或外商独资经营
【单选题】Debating whether or not something is true by evaluating objective and measureable information is what type of debate?
A.
A fact debate
B.
A value debate
C.
A policy debate
D.
Parliamentary debate
【简答题】在塔顶和塔釜同时出现的组分为( )组分。
【单选题】It should be reminded that today's debate on immigration______.
A.
centers on whether there should be restrictions
B.
focuses on how to defend the national interests
C.
indicate that the emigration in U.S.may continue for a while
D.
indicate that the emigration in U.S.has almost come to an end
【单选题】They are having _____ debate about whether the two countries were at _____ war at the time.
A.
the; the
B.
a; the
C.
the; 不填
D.
a; 不填
【简答题】现代仪器分析法有何特点?它的测定对象与化学分析方法有何不同?
【单选题】The issues in the debate on Harvards goals are whether theuniversities should remain independent of our society and its problems, andwhether they should __________.
A.
fight off militarism
B.
exert greater influence upon the young generation
C.
take an active part in solving the societys ills
D.
reconsider the structure of institutes and departments
【单选题】The school ______ a public debate on whether they should build a new computer laboratory or not.
A.
induced
B.
initiated
C.
promoted
D.
embarked
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