不属淋巴器官的是（）
A.胸腺
B.松果腺
C.脾
D.舌扁桃体
E.咽扁桃体
参考答案：B
31．The man stopped his bicycle beside the car______it had a broken chain．
A．or
B．until
C．as
D．Yet
运行下面程序，结果如图表示。(此程序是Logo语言编写)
TO ZFX
REPEAT 4[FD ______ RT 90]
PU FD 25 RT 90 FD 25 LT 90 ______
END
TO TU
REPEAT 4[REPEAT ______ [ZFX] RT ______
REPEAT 4[ZFX]RT ______]
