《本安体系》登高和高空作业规定:梯子靠放斜度应当在()之间。
A、25°~30°
B、30°~40°
C、35°~45°
参考答案:B
药物与分类
质子泵抑制药
A.阿托品B.碳酸氢钠C.法莫替丁D.奥美拉唑E.硫糖铝
I had expected to come over to see you last night, but someone ______ and I couldn’t get away.
A.called
B.had called
C.would call
D.would have called