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【单选题】
带传动的设计准则为( )。A.
保证带传动时，带不被拉断
B.
保证带传动在不打滑的条件下，带不磨损
C.
保证带在不打滑的条件下，具有足够的疲劳强度
D.
保证带传动在不发生弹性滑动的条件下，具有足够的疲劳强度
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举一反三
【简答题】从供选择的答案中，选出应填入下面叙述中______内的最确切的解答。 MIMD systems can be classified into (1) oriented systems, high-availability systems and response-oriented systems. The goal of (1) oriented multiprocess is to obtain...
【单选题】某城市最高时用水量为300L/s，其中集中供应的工业用水量为190L/s。干管各管段名称及长度(m)见下图。管段1-2，2-3，4-5为单向配水，其余为双向配水，则比流量qs为( )。
A.
0.0312
B.
0.0472
C.
0.0528
D.
0.0362
【简答题】用所给单词的适当形式填空。 1. This is an interesting book _____ (write) by Shakespeare. 2. Gina was my best friend when l was a kid, but _____(not see)her since 2002. 3. －How long have you been _____ (study) Engli...
【简答题】某城市最高时用水量为 300L/s ,其中集中供应的工业用水量为 190L/s ,干管各管段名称及长度( m )见下图。管段 1-2 , 2-3 , 4-5 为单向配水,其余为双向配水,求比流量 q s 。
【简答题】从供选择的答案中，选出应填入下面叙述中______内的最确切的解答。 Soon, more of the information we recelve via the internet could come (1) in digital wrappers. Wrappers are made up (2) software code that's targeted to do specific t...
【简答题】In this semester, you are expected to read an English book written by a British author, and then write a book report in about 500 English words. You should submit your book report before the end of th...
【单选题】This book ____ by a famous American writer.
A.
is write
B.
was written
C.
is writing
D.
wrote
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