﹣ Mom, ______ I visit the art museum next Monday?
﹣ I'm afraid you can't. All museums in the city are closed on Monday.
A:would
B:need
C:should
D:may
当x=2015时,分式1-x1-x2的值是( )
(1)胃液中含有盐酸,胃酸过多的人常有胃疼烧心的感觉,易吐酸水,服用适量的NaHCO3,能治疗胃酸过多,请写出其反应的离子方程式: ____;
(2)如果病人同时患胃溃疡,为防胃壁穿孔,不能服用小苏打,此时最好用含氢氧化铝的胃药(如胃舒平),离子方程式为: ____
直线a∥平面α,P∈α,那么过P且平行于a的直线( )
下面是某同学在测肺活量时,记下的三次数值,分别是:3200mL、3500mL、3800mL,则该同学的肺活量应为( )