血清γ-谷氨酰转肽酶(γ-GT)在人体组织细胞中含量最多的器官是()
A.肝
B.肾
C.心
D.胰
E.肠
参考答案:B
如图所示,让自然光照到P偏振片上,当P、Q两偏振片的透光方向间的夹角为以下哪些度数时,透射光的强度最弱( ).
A.0°
B.30°
C.60°
D.90°
It’s John’s birthday today. I wish I _____ her out to a superb restaurant for dinner, but I’m too busy recently.
A.can take
B.take
C.could take
D.had taken