【单选题】氮和臭氧层吸收,但大部分的UVA和UVB会进人人眼,所以保护眼睛,减少UVB和UVA的入侵非常重要。
【单选题】下列选项代表不同处理条件下的燕麦胚芽鞘,其中琼脂切块是经胚芽鞘尖端处理过的(A选项中有一胚芽鞘尖端套锡纸小帽),胚芽鞘表现出生长方向相同的一组是 [ ]
【判断题】氮和臭氧层吸收,但大部分的UVA和UVB会进人人眼,所以保护眼睛,减少UVB和UVA的入侵非常重要。
【单选题】患者女,50岁。确诊慢性肾小球肾炎十余年,近1周来出现双下肢水肿加重。为其输液治疗应选用的胶体溶液为
【单选题】如下图所示对燕麦胚芽鞘进行处理:若电机以10转/min的速度匀速旋转,一星期后胚芽鞘能够发生弯曲的是 [ ]
【简答题】Section A – BOTH questions are compulsory and MUST be attempted (a) You are a manager in Maple & Co, responsible for the audit of Oak Co, a listed company. Oak Co manufactures electrical appliances su...
【单选题】燕麦胚芽鞘经如图所示处理,一段时间后,取其甲、乙两块琼脂,置于已切去尖端的胚芽鞘A、B上,A以单侧光照处理如图Ⅱ所示,则弯曲程度 [ ]
【简答题】Questions 18~21 are based on the following dialogue between a teacher and a student. How many courses did the woman take last semester? [A] 3. [B] 4. [C] 5. [D] 6.
【单选题】如下图所示,将燕麦胚芽鞘的尖端用单侧光照射后,分成a、b两部分,将a、b两部分分别放在切去尖端的燕麦胚芽鞘c、d上,结果c生长快于d。该现象说明 [ ]
A.
a侧生长素浓度大于b侧,该浓度生长素对燕麦胚芽鞘的生长有抑制作用
B.
a侧生长素浓度大于b侧,该浓度生长素对燕麦胚芽鞘的生长有促进作用
C.
a侧生长素浓度小于b侧,该浓度生长素对燕麦胚芽鞘的生长有促进作用
D.
a侧生长素浓度小于b侧,该浓度生长素对燕麦胚芽鞘的生长有抑制作用
【单选题】Questions 下列各 are based on the following passage. Yet with economies in free fail, managers also need up-to-date information about what is happening to their businesses, so that they can change course...
A.
It will keep a record of the orders from sales teams.
B.
It cuts $1 billion cost by solely relying on its own technologies.
C.
Unlike other technology companies, its financial reports are encouraging.
D.
Only employees can use the video-conferencing to pass information.