车辆转弯时应保持左右（）有足够的（）距离。
参考答案：两侧；横向
Teaching as a career ________ to many people because of the long holidays.[ ]
A. attracts
B. calls
C. appeals
D. pulls
慢性肾小球病变时，肾皮质回声常明显增强，应选用哪一脏器的回声与肾皮质对比最佳（）
A.肝脏
B.脾脏
C.胰腺
D.对侧肾皮质
E.肾周脂肪
