由方形膜的上缘构成的韧带是()。
A.杓会厌韧带
B.室韧带
C.声韧带
D.环甲膜
E.环气管韧带
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How can we students keep ourselves safe? Here are some t 小题1: .
On your way home or to school: W 小题2: for the green traffic light, and look left and right before you cross the road. If you see a car coming, don’t cross until it is really safe. Dress in bright colours, so the drivers can see you c 小题3: .
At school: When students around you begin to push, try to hold onto something, or stay in a safer corner. If you fall down in a crowded(拥挤的)place, cover your head with b 小题4: hands.
When there’s a fire: Stay c 小题5: and leave quickly. Use a piece of wet cloth to cover your mouth and nose so that you don’t take in s 小题6: . If your clothes catch fire, please drop to the ground and roll from side to side to put out the fire.
For eating: Wash fruit like apples or g 小题7:carefully before you eat them. Check the expiration dates(保质期)and if your food looks or smells t 小题8: , don’t eat it.
For riding on the escalator(自动扶梯): Hold onto the handrails(扶手). It is d 小题9: to run up and down on them. You may fall down because escalator steps(台阶)are not fit for
r 小题10: .
称为少尿时尿量是()非少尿型急性肾衰竭,血中尿素氮、肌酐进行性升高,可出现尿量()
A.1000~2000ml/d
B.<200ml/d
C.<400ml/d
D.>800ml/d
E.0ml/d
已知CH4(g)+2O2(g)→CO2(g)+2H2O(g)△H═-Q1;2H2(g)+O2(g)→2H2O(g)△H═-Q2;H2O(g)→H2O(l)△H═-Q3
常温下,取体积比为4:1的甲烷和H2的混合气体112L(标准状况下)经完全燃烧后恢复到常温,则放出的热量为( )
A.4Q1+0.5Q2 | B.4Q1+Q2+10Q3 |
C.4Q1+2Q2 | D.4Q1+0.5Q2+9Q3 |
在全国,当选为各级人民代表大会代表和政治协商会议委员的宗教界人士有17 000余人。他们代表宗教界通过人大、政协会议参与国家大事和社会重大问题的决策,同时代表宗教界向党和政府反映宗教界和广大信教群众的意见、建议和意愿。这表明( )
A.我国信教群众直接参与国家事务的管理
B.宗教和国家事务是紧密联系在一起的
C.宗教信仰自由政策得到切实的贯彻
D.宗教是与社会主义相适应的
水平巷道支架前倾、后仰的偏差为多少?