虱传回归热最突出的临床表现是（）
A.关节疼痛
B.肌痛
C.高热
D.头痛
E.鼻出血
参考答案：B, D
Though ________ money, his parents managed to send him to school.
A. lacked B lacking of C. lack of D. lacking
长江流域母系氏族公社的典型代表是
A、西安半坡人
B、陕西大荔人
C、浙江余姚河姆渡人
D、广东马坝人
