Aika
People can often see a talking parrot on a TV show...
66.couldn't;考查句意理解.句意表达的是Poole博士不能区分Mlaika的声音和卡车的声音;句意表达的是过去的事实,要用couldn't来构成. 67....
Copycat ElephantsYou may have seen a talking...
56-59:BCBC56.答案 B 细节理解题 根据 It turned out that Mlaika was copying the sounds of the trucks driving...
You may have seen a talking parrot on a TV show in...
“Mlaika was not the only copycat elephant ” Dr. Poole says. Calimero is a 23-year-old male African elephant. He spent 18 year...
设A是实对称矩阵,且A^2=0,证明:A=0
看A的i行i列交点元素﹙A﹚ii=∑[1≤k≤n]aikaki=∑[1≤k≤n]aikaik=∑[1≤k≤n]aik=0[∵A=0]∴aik=0 ...
阅读理解。 Israel was happy very happy. The news...
March 21 2002 when a Palestinian man named Mohammad Hashaika exploded a suicide vest packed with metal scraps. Eighty-four people were...