某健康妇女，月经周期可以描述成公式请回答下列问题。

公式中的“18”是指妇女的（）

A．月经周期

B．月经持续时间

C．初潮年龄

D．结婚年龄

E．生育年龄

The following questions present a sentence, part of which or all of which is underlined. Beneath the sentence, you will find five ways of phrasing the underlined part. The first of these repeats the original; the other four are different. If you think the original is best, choose the first answer; otherwise choose one of the others.

These questions test correctness and effectiveness of expression. In choosing your answer, follow the requirements of standard written English; that is, pay attention to grammar, choice of words, and sentence construction. Choose the answer that produces the most effective sentence; this answer should be clear and exact, without awkwardness, ambiguity, redundancy, or grammatical error.

Chef Sylvia Bostock’s eclectic offerings at her new restaurant, Sylvia’s, range from an Asianinspired tuna tartelette in a soy-ginger demiglace with a succulent cowboy rib-eye served atop a small mountain of fried onions.（）

A. with

B. to

C. in addition to

D. and

E. and to