料石应检查产品质量证明书,石材、砂浆检查试块试验报告。
参考答案:对
Mr. Lin ______ when I go to see him on Sundays.
A.is always working
B.was always working
C.always worked
D.has always worked
入煎剂需后下的药物是()
A.鹿角霜
B.薄荷
C.海金沙
D.人参
E.阿胶