_________(55)A.lack B.enjoyC.occupy D.take

A lack of appetite may be ______ of a major mental or physical disorder.A．symbolicB．addict

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Sometimes they______their students poor comprehension to a lack of intelligence.A．distribu

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The failure of the project might be______to a lack of funds.A．retributedB．attributedC．cont

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A firms new marketing approach may not work perfectly because of______.A．lack of an inform

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There are more and more crimes ______ a lack of rules and regulations.A sinceB because o

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54._________A.use B.devote C.spend D.take

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化学泡沫灭火器的使用温度范围是________A．-10～55℃ B．-21～55℃ C．4～55

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