起重臂根部销轴串动原因?
参考答案:
⑴起重臂两侧拉筋松紧程度不同;
⑵起重臂根部圆面和窝槽磨损;
⑶起重臂根部销轴规格不对。
选词填空。
1. A teacher works in a _______________ (shop, school, mall).
2. A waiter works in a _______________ (shop, restaurant, market).
3. A _______________ (businessman, doctor, cashier) works in an office building.
4. A clerk works in a _______________ (department store, school, gym).
5. A _______________ (cashier, businesswoman, waitress) works in a department store.
2010年,物价“涨”声一片,国家 “控”举不断。
材料一:以农产品为主的生活必需品价格上涨较快,物价上涨不仅催生了“豆你玩”“蒜你狠”“姜你军”“苹什么”“糖高宗”“油你去”“煤超风”等网络热词,也催生了囤货抗涨的“海囤族”、节省开支“抠抠族”和抱团消费的“团购族”。
(2)结合材料二,说说国家是如何控制农产品价格过快增长的?(7分)