计算普通混凝土配合比时,一般骨料的基准状态为()。 ["A.干燥状态 ","B.气干状态 ","C.饱和面干状态 ","D.湿润状态"]
10. class Foo { 11. static void alpha() { /* more code here */ } 12. void beta() { /* more code here */ } 13. } Which two are true?() [" Foo.beta() is a valid invocation of beta()."," Foo.alpha() is a valid invocation of alpha()."," Method beta() can directly call method alpha()."," Method alpha() can directly call method beta()."]
被尊称为“西方‘现代音乐’之父”的大师是() ["莫扎特","贝多芬","巴赫","柴可夫斯基"]
石料中,片石的厚度不应小于()cm ["20","30","15","10"]
纯电阻电路中电阻并联时,等效电阻等于各电阻的倒数之和。
公关传播的含义?