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预后最差的HL类型是

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回收自己外伤、手术中或术后的失血并安全回输称

招标日前5个工作日(T-5日)，发行人通过中国债券信息网、中国货币网披露公司债券发行公告。()

A. 正确
B. 错误

SECTION 1 Vocabulary Selection
In the section, there are 20 incomplete sentences. Below each sentence, there are 4 choices respectively marked by letters A,B,C and D. Choose the word or phrase which best completes each sentences. There is only ONE right answer.
John is no match______his younger brother at table tennis.

A. to
B. at
C. for
D. on

下列事件中,()可以通过多角化投资来分散。

A. 通货膨胀
B. 罢工
C. 战争
D. 自然灾害