痰浊闭阻型胸痹心痛的主症是
A．心痛如绞
B．胸闷如窒
C．体胖痰多
D．冷汗自出
E．脘腹胀闷
参考答案：B,C
在△ABC中，AB=AC，BC=5cm，作AB的垂直平分线交另一腰AC于D，连BD，若△BCD周长是17cm，则腰长是（ ）cm
____ your performance in physics ____ Jack's and you'll realize you should work harder. [ ]
A. Compare, with
B. Compared, to
C. Comparing, with
D. Comparing,to
