“十一”黄金周期间,王蒙同学在十堰街头看到一辆车牌号为“豫A3648l”的旅游大巴车,这辆大巴车来自( )
A:河南省
B:河北省
C:安徽省
D:山西省
The man______of shooting 6 school children was caught by Beijing police,the XIN HUA News Agency reported on Friday.( )
find out, feel like, quite a few, bring out, come out, of course, at least, make up, care about, dress up
如图所示的各种电路,同种元件的参数均相等,能利用滑动变阻器调节电灯从亮到熄灭的电路是( )
将大粒的花生种在贫瘠的土壤中,结出的花生较小,这种变异____ (“能”或“不能”)遗传给后代。因为这种变异单纯是由____ 变化引起的而其内部的____ 并没有改变。
“蜂窝煤”比煤求更有利于煤的完全燃烧、提高燃烧效率,这主要是因为( )