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标题: og Verbal Review #38 [打印本页]

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作者: yaoyao99    时间: 2006-4-2 11:44
标题: og Verbal Review #38
Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy.

B) Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device.

Why is B wrong?  I can separate it into two sentences: 1) Fetal heartbeats can be detected by the 12th week of pregnancy.  2) Fetal heartbeats can be detected using a Doppler ultrasound device.  Both seems okay.  The OG answer said it must be a physician who is using the device but can't it be implicit?

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作者: yaoyao99    时间: 2006-4-4 09:29
help help please..

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作者: yeleiscut    时间: 2006-4-4 12:39

以下是引用yaoyao99在2006-4-2 11:44:00的发言：
Using a Doppler ultrasound device, fetal heartbeats can be detected by the twelfth week of pregnancy.

B) Fetal heartbeats can be detected by the twelfth week of pregnancy, using a Doppler ultrasound device.

Why is B wrong?  I can separate it into two sentences: 1) Fetal heartbeats can be detected by the 12th week of pregnancy.  2) Fetal heartbeats can be detected using a Doppler ultrasound device.  Both seems okay.  The OG answer said it must be a physician who is using the device but can't it be implicit?

LZ觉得"Fetal heartbeats use a Doppler ultrasoud device"合逻辑吗？

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