界限糊精酶，主要起降低支链糊精含量的作用，是淀粉酶中不可缺少的组成成分。
参考答案：对
.
The coach gave the team members a call immediately the results were announced ,_____them on their success .
A． to congratulate
B．congratulating
C．congratulated
D．having congratulating
怀疑为脑膜脑膨出行CT或MRI检查的目的是（）。
A.明确脑膜脑膨出的大小
B.明确脑膜脑膨出的确切位置
C.明确脑膜脑膨出的内容物
D.明确颅骨缺损的部位
E.以上都对
