平面作业法
参考答案:在平地或坡度平缓的土地上,做好基础防渗、引流和导气工程后,将垃圾平铺后压实,再用薄层土壤覆盖再压实,作为初识填埋单元的屏蔽,建造一个人工土坝。
My son and I _____________ a trip to Beijing. [ ]
A. is going on
B. are go on
C. are going to
D. are going on
诊断颅内压高的可靠依据是()
A.视 * * 水肿
B.剧烈头痛
C.频繁呕吐
D.癫痫发作
E.双外展神经麻痹