1、In the expression “a single bar of it” in the last paragraph, “it” refers to.(单选题)
A. the tune of the last concerto
B. one of Mozart’s musical works
C. part of the knowledge we have
D. a measurement on the stave
试题答案:A
2、In some cases the organisms that cause blood poisoning enter the bloodstream through contaminated needles or other improperly sterilized instruments.(单选题)
A. contacted
B. infected
C. contagious
D. infectious
试题答案:B
3、The words “the change” underlined in Paragraph 8 refer to ______.(单选题)
A. time change
B. technology change
C. change in spreading ideas
D. change of human abilities
试题答案:C
4、Countless divorced politicians would have been elected out of office years ago hadthey even thought of a divorce, let alonehas gottenone.(单选题)
A. getting
B. to get
C. gotten
D. get
试题答案:C
5、The evidence of electrical activity and other changes in brain cells after the outside stimulus has been got by observing.(单选题)
A. exposed cat brains
B. the human brains
C. cat brains and the human brains
D. exposed cat brains and the human brains
试题答案:D
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