四分法是根据雌性动物的精神状态、性反应、卵巢和 * * 上皮细胞的变化以及粘液分泌情况，将

Lim provides printing services under the business name of AC Printing Services (AC). Lim had rented a unit from JTC Corporation (JTC) a year ago. The tenancy agreement included clause 21, which required the landlord ‘in every way to keep the building in good repair’.On 23 March 2011, large chunks of concrete broke off from the ceiling in the unit occupied by AC. Although no-one from AC was hurt in the incident, the chunks of concrete landed on two of AC’s printing machines and severely damaged the machines. Also, as the entire building had to be shut down for inspection by structural engineers, AC had to close for two weeks, resulting in numerous cancellations of their existing services as well as a loss of new deals. To make matters worse, AC was very close to signing a lucrative contract worth $30,000 with a well-known advertising agency which it then lost to a rival firm. Lim is extremely upset and wants to sue JTC.Required:Assuming JTC has breached the tenancy agreement, advise Lim as to:

(a) whether he can terminate the tenancy agreement, having regard to the nature of the term set out in clause 21 of the tenancy agreement; and (6 marks)

抢救巴比妥类中毒所致呼吸衰竭的重要措施是（）。

基床表层级配碎石（或级配沙砾石）的压实标准用（）三项指标控制。

承诺应当以明示（通知）的方式作出，缄默或者不作为不视为承诺。

测量转换电路的作用是将（）输出的电参量转换成易于处理的电压、电流或频率等。