根据单克隆抗体的特点，以下说法错误的是（） A.具有单一的生物学功能 B.高度的均一

下列反映职业道德具体功能的是（）。

A、整合功能

B、导向功能

C、规范功能

D、协调功能

办公设备零售业——其中许多小企业已经破产——最近的巨变被归因于办公设备“超级商店”的到来，这些商店的高销售规模保证了低价格。但是，这种分析是有缺陷的，因为即使在今天超级商店也只控制了零售市场中很小的份额。
下面哪个，如果正确，会最大限度地削弱认为这种分析具有缺陷的论证

A．大多数较大的办公设备可通过合同直接从制造商那里购买，从而并不参与零售市场。
B．超级商店对它们的低价格进行的大规模广告已经促使整个办公用品零售市场的价格降低了。
C．最近刚刚开张的一些超级商店自己已经破产了。
D．大多数办公设备超级商店由大型零售连锁集团拥有，这些连锁集团也拥有销售其他种类商品的商店。
E．计算机在大多数办公室里的重要性的不断提升已经改变了办公设备零售商必须储存的货物类型。

B

It keeps your insides from falling out. It helps you warm up when you are cold, and it can cool you off when you are hot. It lets you feel things by touch.
What is this Your skin, of course! What does your skin ask for in return for all the wonderful things it does Just a little care! So let’s learn how to take good care of our skin.
Like the heart and stomach, your skin is an organ(器官). In fact, it is the largest organ in your body. Unless there’s a problem, you may not think about your skin very much. But skin has an important job to do.
Your skin is protecting you. Your skin keeps you from getting sick. When you take care of your skin, you are helping your skin do its job. Taking care of your skin today will help you have no problems in the future.
Clean skin is happy skin! One simple way to take care of your skin is to keep it clean. Keeping your hands clean is very important. When washing your hands, use warm water. Wet your hands, and then use soap. You should wash your hands carefully everywhere.
You’ll also want to use warm water, but not too hot, when you take a bath. Use soap to clean your body. Don’t forget under your arms and behind your ears! Your face needs attention, too. It’s a good idea to wash your face once or twice a day with warm water.

Which of the following best describes your clean skin ( )

A．A kind of job to keep you from getting sick.

B．An important and largest organ.

C．Something like your heart and stomach.

D．Healthy and happy skin.

下述回答咨询“正确贮存药品”的内容中，不正确的是

A．药品标签标有重要信息，不要撕掉
B．所有的药品应该保存在原始包装中
C．药品保存在原始包装中就不会变质
D．药品原始包装标有有效期，可避免过期服用
E．药品保存在原始包装中，以防止混淆或受影响而失效

雷电流波头时间T1是指雷电流由幅值的10%上升到（）所需要的时间。这个时间IEC规定了首次雷击的参数值为（），后继雷击为0.25μs。

A、50%，10μs

B、90%，50μs

C、90%，10μs

D、50%，50μs