一物体自空中的A点以一定的初速度竖直向上抛出,1s后物体的速率变为10m/s,则

题型:选择题

问题:

一物体自空中的A点以一定的初速度竖直向上抛出,1s后物体的速率变为10m/s,则物体此时的位置和速度方向可能是(不计空气阻力,g=10m/s2)(  )

A.在A点上方,速度方向向下

B.在A点下方,速度方向向下

C.在A点上方,速度方向向上

D.在A点下方,速度方向向上

考点:竖直上抛运动
题型:选择题

M公司于20×8年1月1日从证券市场购入N公司发行在外的股票30000股,划分为可供出售金融资产,每股支付价款10元,另支付相关费用6000元。20×8年12月31日,这部分股票的公允价值为320000元,则20×8年M公司持有该金融资产产生的投资收益和资本公积金额分别为元。

A.0和14000

B.6000元和14000

C.6000和0

D.14000和14000

题型:选择题

正方体的棱长扩大2倍,那么它的体积就扩大8倍.______.(判断对错)

题型:选择题

女性,36岁,右膝关节肿胀疼痛2年,X线示膝关节股骨和胫骨非承重面虫噬样骨质破坏,骨质密度低,关节肿胀。

应诊断何种疾病()

A.腰2恶性肿瘤

B.腰2/3脊椎结核

C.腰2嗜酸性肉芽肿

D.腰椎转移瘤

E.腰椎退行性骨关节病

题型:选择题

根据《旅行社条例》规定,旅行社有下列( )情形之一的,由旅游行政管理部门责令改正,拒不改正的,处1万元以下的罚款。

A.旅行社不投保旅行社责任险的

B.旅行社未在规定期限内向其质量保证金账户存入、增存、补足质量保证金或者提交相应的银行担保的

C.设立分社未在规定期限内向分社所在地旅游行政管理部门备案的

D.不按照国家有关规定向旅游行政管理部门报送经营和财务信息等统计资料的

E.旅行社未经旅游者同意在旅游合同约定之外提供其他有偿服务的

题型:选择题

For years we have believed we were either healthy or sick. (55) , during the mid-90s, scientists developed a new concept called "sub-health", a status (56) health and illness. The concept of sub-health has become (57) because it has helped to explain many health problems. (58) one study, only 5. 6% of people in the overall population are actually sick, (59) the subhealthy group consists of about 60%, and the (60) population is considered healthy. (61) of one’s sub-health will help one to be alert to the underlying disease and remain healthy. Sub-health is a state in which the body is (62) turning from health to illness or from illness to health. Our bodies are actively (63) the conditions of health, sub-health and disease. Factors (64) aging, internal or external toxicity (毒性), and body or mind exhaustion may cause sub-health, but taking good care of the body can change a sub-healthy status to a healthy one.

60().

A.within 

B.between 

C.toward 

D.beyond

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