应用最为广泛的填埋场防渗柔性膜材料是()。
A.氯化聚乙烯
B.高密度聚乙烯
C.聚氯乙烯
D.聚乙烯
参考答案:B
Everyone says our team will win,but I it.
A.sceptical of
B.am sceptical
C.sceptical about
D.am sceptical about
治疗糖尿病,可以通过注射( )
A.生长激素
B.胰岛素
C.甲状腺素
D.肾上腺素