马来丝虫慢性期最常见的临床症状是()
A．象皮腿
B．阴囊象皮肿
C．乳糜腹水
D．乳糜尿
E．乳糜腹泻
参考答案：A
Students should by all means ______ their studies though there are a lot of attractions around them. [ ]
A. devote to
B. fix on
C. keep on
D. concentrate on
以下哪项检查对腰部神经受压不具备针对性（）
A.屈颈试验
B.挺腹试验
C.颈静脉压迫试验
D."4"字试验
E.直腿抬高加强试验
