题目内容

Until the late nineteenth century,there was no uniform system of time-keeping in the United States.

A. personal
B．efficient
C．consistent
D. practical

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下列因素不参与EMP途径中磷酸果糖激酶调节的是______。

A. 胰高血糖素
B. 3-磷酸甘油酸
C. 2，6-二磷酸果糖
D. pH

与子宫颈癌无关的临床表现是

A. 阴道流血
B. 接触件出向
C. 白带增多带腥臭D．痛经
D. 下腹部、腰骶部疼痛

How lucky! We were just______ for the train.

A. in time
B. on time
C. in no time

The once separate issue of environment and development are now()linked.

A. intangible
B. indispensable
C. inextricably
D. incredibly