三角形木屋架的主要接合方式是()。A.卯榫接合 B.齿联接 C.胶与螺栓 D.金属件

题型:单项选择题

问题:

三角形木屋架的主要接合方式是()。

A.卯榫接合

B.齿联接

C.胶与螺栓

D.金属件接合

考点:手工木工高级工考试手工木工高级工考试题库
题型:单项选择题

某企业拟开发新产品,有四种设计方案可供选择,见下表。根据后悔值原则,该企业应选择()。

A.Ⅰ

B.Ⅱ

C.Ⅲ

D.Ⅳ

题型:单项选择题

阅读理解。

     Clothes can make phone calls, play music, dial your pal's number, keep you warm during cold

weather and operate your computer.

     This is not a fantasy. A British company, called electrotexiles, has created a wide range of

clothes-clothes tha have minds of their own ! Scientists, working for the company, have invented a kind

of fabric that can be mixed with flexible electronic materials to create intelligent clothing. The results are

electronic garments.

     If you think the weather has to be wired to different devices, think again. These designer clothes are

wirefree, soft to touch and washable! Like any electronic device, these hightech clothes have to be

powered. Currently, a tiny ninevolt battery serves the purpose. But the researchers hope that in the near

future the clothes will generate electricity by using body heat. These clothes are 100% shockproof, they

say.

     The electrotexiles team has also created the world's first cloth keyboard. These keyboard can be

sewn into your trousers or skirt. To use this device, you will have to sit down and tap on your lap! These

"laptap" devices are all set to take over laptop computers!

     Another useful garment is the shirtcummobile phone. This handy invention enables drivers to chat

comfortably with others at the wheel! Other popular electronic wears include the denim (牛仔布) jacket

with flexible earphones sewn into the hoop and the electronic ski jacket with a builtin heater. The ski

jacket is also programmed to send signals to a satellite. This technology is known as global positioning

system and can be used to track lost skiers and wandering kids.

     Having completed the cloth keyboard, scientists have already started to work on a new project-a

necktie that can be used as a computer mouse. What is the next? Do you have any idea?

1.The electronic garments are similar to other electronic devices in that ________.

A. they feel smooth and soft  

B. they use electricity as power

C. they can be washed in water  

D. they are made from flexible materials

2.How will researchers improve these hightech clothes?

A. Body heat will be used as power.

B. The wearer will not get shocked.

C. A tiny ninevolt battery will work.  

D. They will get charged automatically.

3. The main purpose of the text is_______.

A. to advertise for an English company

B. to predict the future trend of the products in the company

C. to show how rapidly science develops

D. to introduce some intelligent (智能的) clothing in the company

4. It can be inferred that the author's attitude towards the company is _______.

A. negative (消极的)  

B. casual  

C. optimistic  

D. doubtful

题型:单项选择题

下列哪种学说不属于局麻药产生神经阻滞的原理()

A.受体部位学说

B.闸门控制学说

C.表面电荷学说

D.膜膨胀学说

E.钙离子学说

题型:单项选择题

甲知其房屋南边邻地将建一座楼房,但是佯装不知,将房屋售与乙。半年后,南边高楼建成,乙之房屋受不到阳光照射。在此例中甲违反了民法的( )。

A.权利不受侵害原则
B.平等互利原则
C.情势变更原则
D.诚实信用原则

题型:单项选择题

根据增值税的有关规定,下列增值税一般纳税人,不可以按6%征收率计算纳税的是()

A、以自己采掘的砂、土、石料或其他矿物连续生产的砖、瓦、石灰

B、黏土实心砖、瓦

C、用人或动物的血液或组织制成的生物制品

D、建筑用和生产建筑材料所用的砂、土、石料

更多题库