如果∠α与∠β的两边分别平行,∠α与∠β的3倍少36°,则∠α的度数是 [ ]
A、18°
B、126°
C、18°或126°
D、以上都不对
答案:C
已知不等式3x+c>0的解集是(-2,+∞),则不等式cx2+(c+1)x+1<0的解集是______.
根据句子内容和中文提示,写出空白处的单词。没空限填一词。
小题1:Where is your ________(录音带)?
小题2:Let me draw a nice ________(船) for you.
小题3:Tom’s smile is very ________(奇怪的).
小题4:Beihai Park is a little far from here. Let’s go there by_______(出租车).
小题5:It’s too cold; his lips(嘴唇)change into________(紫色).