单项选择题以下哪一项是“不稳定型心绞痛”对应的主题词 A、Unstable Anginas B、Angina Pectori, Unstable C、Angina, Unstable D、Preinfarction Angina
单项选择题I felt like to him, 'Don't be such a complainer all the timE.'A.sayB.sayingC.to be saidD.to say