【简答题】(本小题满分14分) 已知函数 f (x)=e x -k -x,其中x∈R. (1)当k=0时,若g(x)= 定义域为R,求实数m的取值范围;(2)给出定理:若函数 f (x)在[a,b]上连续,且 f (a)· f (b)1时,函数 f (x)在(k,2k)内是否存在零点.
【简答题】A.Red-haired women were regarded as more reliable. B.Brown-haired women were rated as more capable. C.Golden-hairef women were considerde attractive. D.Blach-hairef women were judged to ge intelt...
【单选题】关于血友病病人的治疗和护理,下列错误的是
A.
出现深部组织血肿和关节腔出血时,应避免活动,早期可加压冷敷或压迫止血,并固定患肢
B.
可以输新鲜血、血浆、抗血友病浓缩剂,补充缺乏的凝血因子
C.
颈部或喉部软组织出血时,应注意呼吸道是否通畅
D.
平时活动要适量,行走、慢跑、持重物时间不宜过长
【单选题】关于血友病病人的治疗和护理,下列错误的是:
A.
出现深部组织血肿和关节腔出血时,应避免活动,早期可加压冷敷或压迫止血
C.
颈部或喉部软组织出血时,应注意呼吸道是否通畅
D.
平时活动要适量,行走、慢跑、持重物时间不宜过长
【多选题】下列各明细账户中,既要提供金额指标又要提供实物指标的明细分类账户有( )。
【单选题】Why were women easily subjected to domestic violence in the past?
A.
They were financially dependent on their husband
B.
They were physically too weak
C.
They suffered from Stockholm syndrome
D.
They were considered as property
【单选题】关于血友病病人的治疗和护理,下列错误的是
A.
出现深部组织血肿和关节腔出血时,应避免活动,早期可加压冷敷或压迫止血,
C.
可以输新鲜血、血浆、抗血友病浓缩剂,补充缺乏的凝血因子
D.
颈部或喉部软组织出血时,应注意呼吸道是否通畅
E.
平时活动要适量,行走、慢跑、持重物时间不宜过长
【简答题】若函数 的定义域时R,则k的取值范围是 。
【单选题】These old women are fond of bargains, that's why they were so easily ________. [ ]