SDH检测到上游支路信号故障，向下游发送的包含TUPTR的整个TU帧内全为01。

慢性龈缘炎（）

A.牙菌斑

B.服用药物

C.内分泌导致的激素变化

D.遗传因素

E.全身疾病下列疾病的直接病因是

患者女性，77岁，因“腰背部刺痛1周”来诊。患者3个月前在家不慎摔倒，出现腰部疼痛，不能直立行走；次日出现便秘、腹胀，自行口服泻药缓解，未做正规治疗；1周前因弯腰不当导致症状加重，腰背部刺痛，大声说话、咳嗽、深呼吸时疼痛加重，翻身时疼痛剧烈。脘腹胀满，食后为甚，不思饮食，大便溏薄。查体：体温36.5℃，脉搏80次/分，呼吸24次/分，血压135/80mmHg（1mmHg＝0.133kPa）。精神不振，形体消瘦，肢体倦怠，少气懒言，面色萎黄。腰椎后凸畸形，第1、4腰椎椎体棘突压痛和叩痛明显。其他查体未见异常。舌淡，苔白，脉缓弱无力。X线片：第1、4腰椎椎体变扁，椎体高度减低（不超过1/3），上缘不同程度凹陷；腰椎生理曲度变直，所示腰椎椎体骨质疏松。

最恰当的治疗措施是（）

A.营养调护

B.石膏固定

C.手术治疗

D.绝对静卧

E.下肢牵引

F.练功活动（五点支撑、飞燕点水等）

2，6，13，39，15，45，23，（）

A．46

B．66

C．68

D．69

Almost all theme park accidents can be prevented. Here, based on coverage of theme park safety, are some tips to help you and your family stay safe on your next visit.

If you are visiting with a child, take a moment to explain the ride to them, and tell them what they should do. They are depending upon you to keep them safe. Set a good example for them by following the rules of the park, and make sure that they know you expect them to follow those rules, too.

Tell them to stay seated, to hold the grab bar or put their hands in the laps, and not to stick their knees and feet outside a ride vehicle. Make them look to you for the okay to get on or off a ride, too. And never put a crying child on a ride. If your child starts to cry, let others pass you in line until your child is calmed. Or, gently exit the queue and find something more relaxing to do. 

Young kids can’t keep an adult’s pace in a theme park. Let them take plenty of breaks.

“Kids get tired,” said TPI reader Matt Johnson, a father of four. “Tired kids make parents even more tired. And tired kids and parents may get hurt — physically and emotionally.” He advises that parents plan a mid-day break, perhaps a swim back at the hotel, to avoid mid-day heat and crowds. “You will see cranky families having a miserable time while you are refreshed and having a great evening.”

小题1:The second paragraph tells readers that ______.

A．children should be trained to be more independent

B．adults should tell children some safety rules firstly

C．adults should set a good example to conduct well in a theme park

D．there is a danger to take young children to visit a theme park小题2:Which of the following is NOT right for children who are taking the rides?

A．They cannot put their hands away from the grab bar.

B．They are forbidden to put their knees or feet out.

C．They should ask adults’ permission first to get on a ride.

D．Without adults’ okay sign, children shouldn’t get off a ride.小题3:If your child begins to cry just when he is going to take a ride, you should ______.

A．tell him to be relaxed

B．make him share your interest

C．give up the present activity

D．encourage him to be brave小题4:We may infer from Matt Johnson’s words that ______.

A．he doesn’t like to visit a theme park with his children

B．parents with many children may be tired of visiting a theme park

C．not all the families are relaxed or happy when they visit a theme park

D．visitors should arrange everything carefully before starting小题5:What is the meaning of the underlined word “exit” in the third paragraph?

A．等待

B．发现

C．进入

D．离开

麦蛾科昆虫主要危害哪些粮食？