管子对口对好后，宜用点焊固定，每个口至少点焊______处。
A．2
B．3～5
C．5～7
D．8
参考答案：B
She is studying at a music college, and _____ she is also studying economics.
She wants to be a manager.[ ]
A. at that time
B. at that moment
C. at the same time
D. at the same times
血浆ACTH测定增高，见于
A．肾上腺皮质腺瘤B．肾上腺皮质腺癌C．Carney综合征D．Meador综合征E．异位ACTH综合征
