[求助]og61

(

61. The Gorton-Dodd bill requires that a bank disclose to their customers how long they will delay access to funds from deposited checks.fficeffice" />

(A)     that a bank disclose to their customers how long they will delay access to funds from deposited checks

(B)     a bank to disclose to their customers how long they will delay access to funds from a deposited check

that a bank disclose to its customers how long it will delay access to funds from A)     deposited checks

(B)     a bank that it should disclose to its customers how long it will delay access to funds from a depos­ited check

(C)     that banks disclose to customers how long access to funds from their deposited check is to be delayed

In E, the use of the passive construction is to be delayed is less informative than the active voice because the passive does not explicitly identify the bank as the agent responsible for the delay.

为什么被动语态就导致语义不清楚，被动语态和主动语态在这一点上有什么区别呢？