吊砂较低的加固方法是用（）加固的。A.插铁钉 B.木片 C.砂钩 D.铁丝

生产经营单位对( )应当登记建档，定期检测、评估、监控，并制定应急预案，告知从业人员和相关人员应当采取的紧急措施。

A．事故频发场所

B．重大危险源

C．每个操作岗位

（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

The right pair of exercise shoes can do a lot to prevent discomfort and injuries, personal trainers say. Here are some shopping tips:

­   71   Depending on your workout, shoes designed for walking, running, tennis, cross-training or another specialty will provide the best support for your feet.

Shop when you normally exercise. Feet actually get bigger throughout the day, sometimes swelling up as much as a half-size by nighttime.    72  

Try them on. Never grab a pair of exercise shoes based only on the size of footwear you normally buy. Bring the type of socks you’d wear to work out and go for a walk through the store.

   73   You should be able to spread your toes out comfortably. Make sure there’s about a half-inch of space between them and the front of the shoe. The back should fit snugly (warmly and comfortably) against your heel and not move up and down. If your feet are different sizes, buy based on the larger one.

Talk to an expert. Shoe salesmen and personal trainers can study your stride (步伐) and the shape of your feet.   74  

   75   Many trainers recommend switching footwear every three to five months, if possible, to maintain proper cushioning and support.

One tip: if you have to tie your shoes very tightly to feel a good amount of support, they may be ready to go.

A．Think about how much you can afford to buy the workout shoes.

B．Consider your type of exercise.

C．Focus on fit.

D．So don’t shop first thing in the morning if you often work out in the evening.E. Pay more attention to new style shoes.

F. Replace worn shoes regularly.

G. Usually they can recommend the best shoes to guard against injuries.

阅读课文中的语段，回答问题。

　　两年前，战士们来到宝石岛上，建立起这个新的阵地。他们在岩石下、小路旁，垒出一块块“海岛田”，把从家乡带来的蔬菜种子·连同自己建岛爱岛的深情一起播种下去。去年，站长和战士们撇下了几颗西瓜子。瓜苗出土了，瓜秧拖蔓了，还开了一朵朵小黄花。可是到了收获季节，竟连一个小瓜也没结。有些战士灰心了，撅着嘴巴，说：“西瓜嫌我们的岛艰苦，不愿在这里安家。”

　　为什么瓜秧开了花不结瓜？（　　）水浇得不够，（　　）肥施得不足，（　　）土壤根本不行？一位雷达兵懂一些农业知识，他找到了答案：西瓜开了花要授粉。小岛远离大陆，没有蜜蜂，也没有别的昆虫。西瓜花没授粉，当然结不了瓜。经他一说，大家才明白了。今年瓜秧开了花，他们仔仔细细地给每一朵雌花都进行了人工授粉。小瓜果然结了不少，水灵灵的，真惹人喜爱。谁料一阵暴雨过后，巨浪扑上了小岛，把小瓜一个个打掉了。后来一检查，（　　）大石头后边的一根瓜秧上，（　　）残存着一个小瓜。他们像抚养婴儿似的照看着这个小瓜，浇水，施肥，一点也不敢马虎。奇迹终于出现了，这个岛上成熟了第一个西瓜。

　　站长把大西瓜切成薄薄的小片，盛在白瓷盘里，送到每一个战士跟前。战士们都笑着，用两个指头捏起一小片来，细细地端详着，轻轻地闻着，慢慢地咬着，不住发出啧啧的赞叹声。好像有一股甘泉，流进了每个战士的心田。

1．在括号内填上适当的关联词语。

2．照样子写词语。

水灵灵　_________　_________

啧啧的赞叹声　______________　______________

3．这几段文字在文章中是（　　），运用了（　　）、（　　）等修辞手法。

4．读完选文我们能充分感受到海岛战士_______________的高尚品德。

5．你觉得生命的意义是什么？

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哲学的基本问题具体是什么？

互联网经济的特点主要表现为（）。

A.看用户量

B.看用户月活跃度

C.用户到达的频次可能一天N次

D.看体验

E.以上都不是