题目内容

When you’re on a cruise, you can stretch your legs on the spacious decks, play games, swim, and enjoy good food – always ________ that the sea is calm.

A. assuming
B. being assumed
C. to assume
D. to be assumed

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A major-party candidate has the critical advantage in the campaign for the presidential election ________ it has the support from the faithful party.

A. in which
B. in what
C. in that
D. from which

The climate was ________ two harvests were possible each year: one in winter fed by the rains and one in summer fed by the irrigation from the canal.

A. so that
B. now that
C. since that
D. such that

抗毒素脱敏疗法的机制是

A. 小剂量变应原只引起微量的生物活性介质的释放
B. 少量介质作用时间短不引起明显的临床症状
C. 短期内小剂量、多次注射逐渐消耗肥大细胞上的IgE
D. 致敏细胞耗尽,机体处于暂时脱敏状态
E. 脱敏治疗后接受大量变应原,不引起超敏反应

有IgE抗体参与的免疫过程是

A. 血清病
B. Arthus反应
C. 过敏性鼻炎
D. 过敏性胃肠炎
E. 支气管哮喘

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