问题
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A diesel engines crankcase oil level is found to be too highYou should suspect that _____.
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A__________to this problem is expected to be found before lon9.A.resuitB.response
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If water is found in the crankcase of a diesel engine, the cause may be due to______.A.a c
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The cure for lung cancer______.A.can be found before longB.is available if one needs itC.i
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The researchers found that______.A.the gene therapy could be verified by animal experiment
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What is the expectation of the employers to their employees?A.Be optimistic.B.Be flexible.
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