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革兰氏阳性细菌,经过革兰氏染色后,在高倍显微镜下呈现的颜色是 。
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【单选题】1 7.How can a radio operator determine the best frequency band to choose for a telex transmission to a shore station?
A.
By consulting propagation tables.
B.
If static interference is present, try lower bands first.
C.
Listen to shore station "free signals";choose the band with the strongest.
D.
During nighttime, choose highest frequencies. Choose Iower frequencies in the daytime.
【单选题】Why did the TV organizers choose actors to join the band?
A.
Because actors could sing better.
B.
Because the actors could play jokes to attract the audi ence.
C.
They couldn't find musicians good enough at first.
D.
They wanted to be different from others.
【单选题】Fast Reading Read the text (P34) carefully and choose the best answer. 1. Honestly, many people want to form a band to ______ .
A.
play at a concert
B.
have fun
C.
earn fame or money
D.
show they love music
【简答题】Questions 11-14 Choose the correct letter, A, B or C. (注意,请采用大写字母填入正确选项,格式不当会导致误判) 11 The next at the hotel will be a A trade fair B wedding C party 12 The number of guests will be A less tha...
【简答题】Section C, Listening Comprehension, Band 6 Section C Directions: In this section, you will hear recordings of lectures or talks followed by some questions. The recordings will be played only once. Aft...
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