The Olympic Games of 2016 will ______ in Brazil.
A:take after
B:take off
C:take place
D:take away
读课文《在太空中理家》,你想成为一个太空探险家吗?如果想,你认为应具备哪些条件?
额定电压相同的甲乙两灯,串联在电路上,甲灯比乙灯亮.下列正确的是:( )