唐朝时,可随水力自行转动,把水由低处汲向高处的灌溉工具是 [ ]
A.水排
B.翻车
C.筒车
D.木棉搅车
答案:C
Jane jumped than Linda at the sports meeting .
A. the highest B. high C. higher
决定休克补液量较可靠的依据是
A.血压B.尿量C.中心静脉压D.脉搏