问题
解答题
计算：4sin60°-(
|
答案
原式=4×
-1-23 2
+23
=2
-1-23
+23
=1．
搜题请搜索小程序“爱下问搜题”
计算：4sin60°-(
|
原式=4×
-1-23 2
+23
=2
-1-23
+23
=1．
请根据句意从方框中选择合适的动词，并用其适当时态填空，使句子通顺。
小题1:— What a pity! I have missed the No. 4 bus. — Don’t worry. The No. 22 bus also _____________ here. 小题2:— How long ___________ you ___________ the maths problem? — Since the teacher left the classroom. 小题3:Sandy finished his project and _____________ to help with mine. 小题4:When there was a call, he _____________ for some photos of the Great Wall on the Internet. 小题5:If it is fine this weekend, I _____________ my friends to go hiking with me. |