_________________A. young B. good C. happy
“I’ ve got an A for my history, ” Judy said (). A. sadlyB. sadC. happilyD. happy
13．A．sad ．B．tiredC．happilyD．happy
He () (happy) drinks cool beer every hot summer night at home.
The new mayor must deal with many()problems.A. superficialB. complexC. goodD. happy
-Does "am"___ afternoon-No, it morning.A. means，meanB. means, meansC. mean, means
Everybody was gald to see Mary back.A:sorry B:sad C:angry D:happy
Everybody was glad to see Mary back.A:sorry B:sad C:angry D:happy
We've been through some rough times together.A:shortB:difficultC:longD:happy
3、以下关于K-means算法错误的有 （)。A．K-means算法需要指定簇的个数B．K-means算法本质上是EM(期望最大化)方法C．K-means算法不会出现局部极小值的问题D．K-means在重新计算质心，簇会发生变化