小型企业和微型企业均具备的客户类型有().
A.支持、退出
B.支持、压缩
C.维持、退出
D.维持、压缩
参考答案:A
Bactec9000系列自动血培养系统的检测手段是()。
A.同位素标记
B.测压力
C.荧光法
D.测导电性
E.颜色变化
Soon children in the camp had many new friends, they shared food, stories and projects.[ ]
A. for which
B. with whom
C. of which
D. to whom