选择题：（）是目前市场上人力资源配置的基本原则。A.双向选择的原则B.降低成本的原则C.要素有用的原则D.德才兼备的原则

血培养的抗凝剂为A、SPSB、EDTAC、肝素D、枸橼酸钠E、都可以

下列正常血细胞的超微结构中,表面没有微绒毛的是A、中性分叶核粒细胞B、嗜酸中幼粒细胞C、嗜酸分叶

Paper straws might be a hard sell for boba tea shops，but the sudden demand for them is only increasing as plastic straw bans______。 A.multiply B.occupy C.divide D.apply

以均数为中心呈最高值、左右完全对称的钟形曲线是A、二项分布B、泊松分布C、正态分布D、双峰分布E、偏

资料：When we see well，we do not think about our eyes very often. It is only when we cannot see perfectly that we realize how important our eyes are. People who are near-sighted can only see things that are very close to their eyes，Everything else seems blu