药材西红花的药用部位是（） A.花 B.花序 C.花蕾 D.花粉 E

用麦康凯平板分离培养肠道致病菌，采用的接种技术是()
用半固体培养基确定分离菌是否有动力，采用的接种技术是()
K-B法测定细菌对药物的敏感性，采用的接种技术是()
对分离的金黄色葡萄球菌进行纯培养，采用的接种技术是()

A．液体接种法

B．穿刺接种法

C．分区划线分离法

D．斜面接种法

E．涂布接种法

Project schedule management is made up of six management processes including: activity definition, activity sequencing, ______, and schedule control by order.

A．activity duration estimating, schedule developing, activity resource estimating

B．activity resource estimating, activity duration estimating, schedule development

C．schedule developing, activity resource estimating, activity duration estimating

D．activity resource estimating, schedule developing, activity duration estimating

---___________ ?

---It’s cloudy.

A．What’s the weathe

B．what was the weather like

C．How’s the weather like

D．How is the weather

如图所示，弹性小球恰好能悬浮在盐水中，则下列说法正确的是

A．小球受到的浮力大小等于小球受到的重力

B．盐水对小球向上和向下的压力差等于零

C．小球的密度大于盐水的密度

D．小球在盐水中浸入得越深，受到的浮力越大

WLAN标准IEEE802.11g规定的数据速率是多少？（）。

A.2Mb/s

B.11Mb/s

C.54Mb/s

D.300Mb/s