心肌炎有______，______，______三型。
参考答案：病毒性心肌炎；细菌性心肌炎；孤立性心肌炎
If a needle is thrown ______ on a sheet of paper ruled with lines, how often can it be expected to fall on a line
A．on purpose
B．with accuracy
C．at random
D．according to one's own will
不属于人月费单价法的可报销费用。
A．国际与国内交通旅行费
B．办公设备用品费
C．社会保险费
D．食宿费
