异步电动机反接制动的接线方式为（）。 A. B. C. D.

可摘局部义齿中，弯制卡环折断的常见原因是（）

A．塑料基托与人工牙胶接不良 

B．前牙覆过深，咬合过紧 

C．铸件内部有缺陷 

D．弯制过程中在同一部位反复修改 

E．龈距离过低

PLAYA GRANDE, COSTA RICA? This resort town was long known for Leatherback Sea Turtle （棱皮龟） National Park, nightly turtle beach tours and even a sea turtle museum．However, on a beach where dozens of turtles used to nest on a given night , scientists spied only 32 国leatherbac,ks all of last year．

With leatherbacks threatened with extinction （灭绝）, Playa Grande's turtle museum was abandoned three years ago and now sits among a sea of weeds．And the beachside ticket office for turtle tours was washed away by a high tide in September．"We do not promote that 'as a turtle tourism destination anymore because we realize there are far too few turtles to please,” said Alvaro Fonseca, a park ranger （管理员）．

Even before scientists found temperatures going up over the past decade, sea turtles were threatened by beach development, drift net fishing and Costa Ricans' interest in eating turtle eggs．Btu climate change may cause the most serious harm to an animal that has lived in the Pacific for 150 million years．

Sea turtles are sensitive to numerous effects of warming．They feed on reefs, which are dying in hotter seas．They lay eggs on beaches that are being covered by rising seas and more violent waves．

More uniquely their gender （性别）is determined, not by genes but by the egg's temperature during development．Small rises in beach temperatures can result in ail-female populations, obviously problematic for survival．If the sand around the eggs hits30 degrees Celsius, the gender balance shits to females: at about 32 degrees they are all female．Above 34, you get boiled eggs．

On some nesting beaches, scientists are artificially cooling nests with shade or irrigation and trying to protect broader areas of coastal property from development to ensure that turtles have a place to nest as the seas rise．

小题1:Why does the resort: town stop promoting its turtle tourism?

A．It decides not to disturb the turtles' normal life．

B．Tourists have lost interest in watching turtles．

C．There are only very few turtles now．

D．The turtle museum was destroyed by a high tide．小题2:Which of the following is the major factor in the turtles endangerment?

A．The local's eating habit．

B．Drift net fishing

C．Beach development

D．Global warming小题3:We learn from the last paragraph that scientists ____．

A．are doing research on the sea rise．

B．are moving turtles to new homes

C．are protecting turtles' nests

D．are getting rid of sea weeds．小题4:The passage intends to ____．

A．introduce a special kind of sea turtle

B．explain the mystery of turtles' eggs

C．show the dangers a certain kind of turtle is facing

D．attract more visitors to a sea turtle museum

女，39岁，因易乏力、间歇头晕2个月就诊，伴肢端麻木，无多尿、口渴。体检：身高165cm，体重75kg，BP18.7/12.3kPa（140/92mmHg），心肺无异常，双膝反射减弱，化验空腹血糖（FPG）6.5mmol/L（117mg/dl），餐后2小时血糖（2HPC）12mmol/L（216mg/dl）

半个月后病人来复诊，并诉说曾到附近诊所诊治，给加用每日一片（2.5mg）格列本脲。服药后常有心跳、出汗，四肢软弱，复查空腹血糖为7.2mmol/L（130mg/dl），餐后血糖11.Immol/L（200mg/dl），下一步最适宜的处理措施是（）

A.加用另一种降血糖药物

B.加大用药剂量至每日2片（5mg）

C.停药观察

D.改用胰岛素

E.停用格列本脲，改用拜糖平或二甲双胍治疗

对不同层次的管理活动有着不同特点的信息需求，在任一企业内同时存在着三个不同的计划控制层，下面哪项不属于企业的计划控制层

A．战略计划层

B．管理控制层

C．操作控制层

D．事务控制层

建设单位接受施工单位对分部工程报验申请后应组织（）等单位有关项目负责人及技术负责人进行验收。

A.施工

B.地方质检

C.监理

D.上级主管

E.设计