I'll _________ six hamburgers, please. [ ]
A. take
B. make
C. cake
答案：A
In recent years the environmental pollution has been _________ than before.
A．so serious
B．serious
C．more serious
D．too serious
土原性线虫是指
A．以上都不是B．人与土壤接触感染的线虫C．成虫在肛周产卵D．生活史属于直接发育型的线虫E．幼虫在外界土壤中发育的线虫
