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【单选题】
春天，雌蛾会发出一种气味，能将远在几百米外活动的雄蛾吸引过来。科学家们析取了这一气味物质，用此来______雄蛾对雌蛾的追踪，并诱使它们飞进所设的捕网。这是一种______害虫的有效的新方法。依次填入划横线部分最恰当的一项是（ ）。A.
监测 控制
B.
阻止 防治
C.
促成 捕捉
D.
扰乱 消灭
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【判断题】The writing system of a language is always a later invention used to record speech,thus there are still many languages in today's have no .... ()
A.
正确
B.
错误
【单选题】Which writing system does Japanese belong to?
A.
word writing
B.
syllabic writing
C.
alphabetical writing
D.
picture writing
【简答题】The writing system of English is known as the sound writing system while that of Japanese as ______ writing system.
【单选题】Which of the following statements is true about the Chinese writing system?
A.
The Chinese writing system does not represent sound.
B.
The Chinese writing system represents primarily the sound.
C.
The Chinese writing system represents primarily the meaning, and sometimes secondarily the sound.
【简答题】In the sound writing system, the reference of the grapheme is the phoneme.
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