搓丸样动作

在下列判断中正确的是：[ ]

A、把体积相同的铁块和木块放入水中，静止后木块受到的浮力比铁块小

B、把质量相同的铁块和木块放入水中，静止后木块受到的浮力比铁块大

C、把体积相等的铁块和铝块放入水银中，静止后铝块受到的浮力比铁块大

D、同一木块浮在酒精面上比浮在水面上受到的浮力小

语法填空

     Many patients who don't want to tell their doctor how much they really drink are often more honest

with a computer. The computer 1. ________(use) for this purpose is programmed to be friendly. For

example, if a patient called Ann says that 2. ________her parents are dead, the computer will say: "I'm

sorry to hear that, Ann. " Apart from expressing sympathy, the computer 3. ________ also question and

remind. If a patient says he 4. ________ drinks alcohol, the computer can ask him, "Never? Not even at

parties or at Christmas?" Does this direct contact 5. ________the patient and the computer mean that we do not need doctors any more?

     It depends. Computers are useful 6. ________ they do not look shocked if you say you drink two

bottles of whisky 7. ________day. And they do not stop to talk on the phone as doctors often do.

     But 8. ________ a doctor said, "We smile and we give a patient a handkerchief or put arm around her

shoulder if she 9. ________(cry)．That is 10. ________ people will always want us. "

下列关于职业道德的说法正确的是（）

①职业道德对职业活动具有能动作用

②职业道德是职业活动中权利和义务的统一

③职业道德规范具有较强的强制性

④职业道德的规范，往往采用自定章程的形式

A、①②③

B、②③④

C、①③④

D、①②③④

当屋面坡度大于15%或受振动时，防水卷材的铺贴方向应（）。

A.平行于屋脊

B.垂直于屋脊

C.与屋脊呈45度角

D.上下层相互垂直

微囊