不符合病毒性心肌炎体征的是
A．心率增快B．心脏扩大C．收缩期杂音D．心动过缓E．第一心音亢进
参考答案：E
计算：cos275°+cos215°+cos75°cos15°．
—Our lockers are big .What about ______?
—______are small.[ ]
A. you, They
B. yours, We
C. you, We
D. yours, They
