主要不良反应为“首剂现象”的药物是()
D
暂无解析
求曲线y=x^2与直线y=0，x=1所围成的平面图形绕x轴旋转一周所得旋转体的体积V.
Hefellasleepimmediatelylastnight;hemust________(be)verytired.
Despitehavingreceivedpositivereviewsbyindustrycritics,salesofthedigitalMP3playerhavebeenquite_______(disappoint).
设数列收敛，则（）
Thepoorcountriesareextremely_______tointernationaleconomicfluctuations