假如让你代表公司向对方公司的销售经理Hoffman先生写一封电子邮件，你应该怎么称呼他？ A: Dear Mr. Hoffman， B: Hi，Hoffman C: Hey，you D: 不写称呼

不属于哈佛大学教授hoffman的研究的是

主要经Hoffman代谢的药物是阿曲库铵。()

肉品质的概念最早是在1994年由Hoffman提出来的。（）

please listen to the video in the website and then tell true(T) or false(F) for the following statements ： (00:00-00:16) Reid Hoffman is one of Silicon Valley's most high-profile investors. He was an early investor in Facebook and is a co-founder of Linkedin. Hoffman is also a partner at the venture capital firm Greylock.

肉品质的概念最早是在1994年由Hoffman提出来的。 A: 正确 B: 错误

The author’s knowledge was gained partly in school and partly because he had begun delivering prescriptions for Hoffman’s drugstore.

可以制备α,β-不饱和羰基化合物的反应是：（ ）。 A: Claisen酯缩合 B: Perkin反应 C: 卤仿反应 D: Hoffman降解

日常生活活动能力评测采用（） A: Ashworth法 B: Brunnstrom法 C: Hoffman征 D: Barthel指数评分法 E: Glasgow量表

Captain Jones ______ that five bullets came from Hoffman's gun and that he had the shells of those bullets with him. A: purified B: magnified C: testified D: intensified