1-88

P1-88

A recent study has found amoxicillin, long a standard treatment for ear infections, as being about as

effective as newer, more expensive antibiotics and causing fewer side effects.

(A) amoxicillin, long a standard treatment for ear infections, as being about as effective as newer,

more expensive antibiotics and causing

(B) amoxicillin, long a standard treatment for ear infections, to be about as effective compared to

newer, more expensive antibiotics and with

(C) amoxicillin, long a standard treatment for ear infections, to be about as effective as newer, more

expensive antibiotics and that it causes

(D) that amoxicillin, long a standard treatment for ear infections, is about as effective as newer,

more expensive antibiotics and causes

(E) that amoxicillin, long a standard treatment for ear infections, is about as effective compared to

newer, more expensive antibiotics and with

答案是D。PREP解释说and causes和is about as effective as newer并列。请问 more expensive 在这里修饰的是谁？如果是修饰newer，为何and causes的前面不用逗号隔开以避免歧义？如果是is about as effective as newer,more expensive antibiotics and causes三者并列，那么 antibiotics 就是多余的。

请NN们指点迷津~