长沙开福寺是佛教沩仰宗的祖庭,对否?
参考答案:错
At the party, Eric oughtn't to _____ the joke. Didn't you see the principal was a bit _____? [ ]
A. be telling; embarrassing
B. tell;embarrassed
C. have told; embarrassing
D. have told; embarrassed
为了判断一个小铝球是不是空心的,小明同学用天平、量筒和水测得如下数据:
(2)若小铝球是空心的,则空心部分的体积是多大?
(3)若将小铝球的空心部分注满水,则整个铝球的质量是多大?