GWD一道求助

Davidlee316 · 发表于 2011-3-5 11:01:30

Medicare, the United States
government’s health insurance program for the elderly and disabled, covers the full cost of home health care, but not with other nonhospital services where 20 percent of the costs must be paid by beneficiaries.

A.but not with other nonhospital services where 20 percent of the costs must be paid by beneficiaries

B.but not of other nonhospital services, making beneficiaries pay 20 percent of the costs
C.but not of other nonhospital services, for which beneficiaries must pay 20 percent of the costs

D.which is unlike other nonhospital services in that 20 percent of the costs must be paid by beneficiaries

E. which is unlike other nonhospital services that make beneficiaries pay 20 percent of the costs

答案C，但为什么B不可以，V-ing表伴随结果，由于前面半句话带来的结果是“受益人要自己支付20%”，请各位指教啦。

GWD一道求助

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