通常情况下,催化剂表面积越大,活性中心越多,催化活性也越高。
参考答案:对
Questions 16-22 · Look at the notes about an enterprise. · Some information is missing. · You will hear part of a presentation by the International Manager of the company. · For each question, fill in the missing information in the numbered space, using one or two words. · You will hear the presentation twice. Honeybee Foods Corporation Honeybee started originally as (16) an ______ parlor The company’s name came from(17) TTC’ s vision of employees workinglike ______ Honeybee’s philosophy (18) “______” Up to 1985, Honeybee had(19) ______ chains in the Philippines In its international expansion, the successful chains were in (20) ______ The chain store of Honeybee in Singapore was(21) ______ In the future Honeybee should (22) ______ step by step.
甲状腺功能亢进施行甲状腺大部切除术后第一天出现声音变弱,比较单调,且不能发高音,发音易疲劳,但不是声音嘶哑。喉镜检查声带活动可有()。
A.喉返神经损伤
B.喉上神经内、外支损伤
C.一侧喉上神经内侧支损伤
D.一侧喉上神经外侧支损伤
E.喉头水肿