毛 * * * * 在1971年的冬天说，今年我们有两大喜事：一件是林彪垮台；另外一件是[

In this school, most students prefer taking pains in their studies to_________with a better education.

A．equip

B．be equipped

C．equipping

D．being equipped

经济法律关系的三个要素中，只有主体变更才会引起经济法律关系的变更。 ( )

Despite (1) that alcoholic beverages may (2) , a leading medical expert is advising: don’t (3) just yet.
Anybody who’s ever worked in a hospital sees the hospital is full of patients that have (4) disease, but the hospital is not full of patients that have disease related to cholesterol and (5) .
In an (6) in the current New England Journal of Medicine, Dr. Goldberg of Columbia University said it is time to see (7) prevents heart disease. Such a study would give (8) to one group of heart disease patients and not to another, and see (9) .
In the latest study, which followed (10) over a 12-year period, researchers found that those who drank (11) drinks per week (12) of heart attack by (13) compared to (14) .
The lead author, (15) Kenneth Mukamal of Beth Israel Deaconess Medical Center in Boston, insists his study is (16) . For one thing, other studies have not looked at (17) .
Dr. Mukamal says (18) also appear to settle which alcoholic beverage are (19) . "Beer and spirits, beer and liquor, were most ply (20) ."

DME的询问脉冲对的重复频率（）。

A.是随距离变化而自动调整的：近距离重复频率高，远距离重复频率低

B.是随距离变化而自动调整的：近距离重复频率低，远距离重复频率高

C.搜索时脉冲重复频率低，跟踪时重复频率高

D.跟踪时重复频率低，搜索时重复频率高

网络又为发行报刊杂志增加了新的途径，下面的发行方式成本最低的是（）。

A.邮寄

B.INTERNET

C.邮局发行

D.派人分发