电缆隧道、工作井的净高,不宜小于1800mm。( )
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Questions 14-16 are based on the following passage. You now have 15 seconds to read the questions 14-16. According to the passage, what makes language learning easier for some people than for others
A. Successful language learners are more intelligent than others.
B. Some people have good teachers and good books.
C. Successful language learners use special techniques.
D. Some people learn grammar more quickly than others.
4,8,16,32,( ),128
A. 48
B. 58
C. 64
D. 68
葡萄糖的简写为()
A. Glu
B. Rha
C. Ara
D. Gal
E. Xyl
What is China’s ranking position as an exporter of tea to Britain today