今(jīn)天(tiān)天(tiān)气(qì)很(hěn)冷(lěng)。
A、
B、
C、
冰箱里放的是苹果和橘子,桌子上摆的是香蕉和菠萝,想吃西红柿的话,得自己去商店。★家里没有西红柿。
A、对
B、错
下列各组离子中,能在溶液中大量共存的是( ).
A、H+、Ca2+、NO3-、CO32-
B、Na+、Ag+、CO32-、Cl-
C、NH4+、K+、NO3-、OH-
D、Na+、K+、MnO4-、Cl-
今天中午(jīntiānzhōngwǔ)我们(wǒmen)吃(chī)米饭(mǐfàn)。
A、
B、
C、
Which of the following is NOT true according to the passage?
A、The workers in Finland are paid by the hour.
B、The bosses in Finland are too busy to check the working hours of their employees.
C、The workers are always honest with their working hours.
D、The workers and their bosses will make an agreement in advance about the pay.
的值为( )。
A、
B、
C、
D、