During the past year, most working women took vacation __________.
A. by car
B. by bike
C. by air
D. by foot
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施工组织形式中，( )适用于大型、复杂的工程项目。
A. 混合工作队式
B. 部门控制式
C. 矩阵式管理组织形式
D. 混合工作队式和部门控制式
______ computer is more essential to a modem business than typewriter.
A. The, the
B. /, /
C. A, the
D. The, a
65岁老年人，白细胞计数40×109/L，分类计数中性粒细胞0.04，淋巴细胞96%，最可能的诊断是
A. 百日咳
B. 流感
C. 慢性淋巴细胞白血病
D. 伤寒
E. 慢性粒细胞白血病
Secretary Leavitt stressed ______ in the process of fighting HSN1 bird flu virus.
A. research and development of new medicine
B. new devices of prevention
C. separation of infectors
D. surveillance and information exchange
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