误服强酸时可使用的中和剂是
A.小剂量亚甲蓝(美蓝)B.大剂量亚甲蓝(美蓝)C.依地酸二钠钙D.二硫基丙醇E.亚硝酸盐一硫代硫酸钠
参考答案:C
A typical (36) language contains an applicative sub-language which approximates the mathematical abstractions of "timeless" functions applied to’ "spaceless" values, where the actual operation sequences and use of storage space during expression evaluation are organized behind the (37) . In this setting, values are data structures of low volume, typically a few computer words or less, which means that an illusion of spacelessness can be realized by having (38) results during expression evaluation stored at the discretion of the language implementation, and effecting parameter (39) and (40) operations through value copying.
A.foreground
B.background
C.screen
D.scenes
B.它是近地圆行轨道上人造卫星的运行速度
C.它是能使卫星进入近地轨道最小发射速度
D.它是能使卫星进入轨道的最大发射速度