【单选题】Base on "Dad": The opposing team captain always get a firm handshake and a gaze because:
A.
I learned handshake from my father and practiced a lot
B.
I have strong arms as my father did
C.
This is the rule of baseball
D.
I have loved the Cleveland Indian team since I was a toddler
【简答题】设积分区域D:x^2+y^2≤4,则二重积分 化学极坐标下的二次积分为_________.
【判断题】In America, they like a firm handshake.
【简答题】What may a firm grip (handshake) show?
【简答题】设积分区域B:x^2+y^2≤2x,则二重积分 ( )
【单选题】Always use a firm handshake____________________________ .
A.
when you shake hands with an Italian
B.
when you shake hands with a British
C.
when you shake hands with a French
D.
when you shake hands with an American