电泳分离的机理是()分离过程。
A.液—液相平衡
B.速率
C.分配平衡
D.筛分
参考答案:B
用所给单词的正确形式填空。
1. Lucy, is this ________ (you) bike?
2. The panda is ________(drink) tea.
3. Li Ming ________ (need) a stamp for his postcard.
4. One stamp ________ (be) ten yuan.
5. Wangfujing has many ________ (shop).
颞深间隙感染临床表现为()
A.张口受限,咀嚼时痛,口内上颌结节后方有压痛
B.张口受限,吞咽时痛,悬雍垂偏向健侧
C.张口受限,咀嚼时痛加剧,并向耳颞部反射
D.张口极度困难,患侧下颌支后缘内侧皮肤肿胀并有深部压痛
E.牙关紧闭,颈强直