生长激素分泌不足( )
A．呆小症B．艾迪生病C．肢端肥大症D．侏儒症E．Graves病
参考答案：D
Later in this chapter cases will be introduced to readers _____ consumer complaints have led to changes in the law.
A．where
B．when
C．who
D．whose
要在墙上固定一根木条，至少需要______根钉子．
