缺磷的麦田,麦苗常呈紫色,根系发育不良,返青期应酌情补施磷肥。()
参考答案:对
下列关于GnRH-a治疗内异症的说法正确的是()
A.高效孕激素疗法
B.假绝经疗法
C.假孕疗法
D.药物性卵巢切除
E.内美通疗法
Though they are______little children , they have worked out _______many difficult math problems.
A.so; so
B.such; such
C.so; such
D.such; so