土压力可分为静止土压力、主动土压力、被动土压力，其根据是（）。
职业能力不包括（）
郎肯土压力理论中，当墙后填土达到主动郎肯状态时，填土破裂面与水平面夹角为____
刚性挡墙后的填土为砂土，当（）时，作用在挡墙上的主动土压力（合力）将增大。
气体灭火系统误操作后如何紧急停止。
火灾自动报警系统根据规程，有人值守时FAS主机可设为“( )”模式，当接到报警为真实火警时由消防控制室值班人员将FAS主机转换为“( )”模式。
在FAS系统中，火灾报警的确认方式有哪些
Never travel with ________ who leaves you in case of danger.
A new law to prevent the export of ______ birds is to be introduced.
As far as I’m concerned, if it social problems with the younger generation then it’s a good thing.
Apart from satisfying needs, food is also an expression of cultural identity.
Shops that sell fresh fish, fruit and vegetables can all be found Mott Street, Mulberry Street, Canal Street and all along East Broadway. Chefs from many restaurants come to Chinatown to get ideas and buy the fresh food.
Chinese culture lays much stress on ________ a balance between yin and yang.
To ensure a good harvest and ( ) the yield, it is necessary for farmers to adopt a digital agricultural system. (maximum)
Don’t be afraid of ____ mistakes when you speak English.
