问题
单项选择题
Which muscle can flex the hip joint and extend the knee joint （）.
A．sartorius
B．adductor longus
C．biceps femoris
D．quadriceps femoris
E．gracilis
答案
参考答案：D
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Which muscle can flex the hip joint and extend the knee joint （）.
A．sartorius
B．adductor longus
C．biceps femoris
D．quadriceps femoris
E．gracilis
参考答案：D