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【单选题】
以下关于802.11中 RTS/CTS预约模式的描述中,错误的是
A.
源主机在检测到信道空闲并退避一个DIFS后产生一个RTS帧
B.
目的主机接收到RTS帧且信道空闲时发送一个CTS帧
C.
源主机接收到CTS帧并退避SIFS后发送数据帧
D.
信道的预约方法可以有效地解决隐藏主机问题
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参考答案：
举一反三
【多选题】企业的核心竞争力是指能够为企业带来相对于竞争对手的竞争优势的资源和能力。企业在分析资源时，要想从中提炼出企业的核心竞争力，需要关注资源的（ ）。
A.
稀缺性
B.
不可模仿性
C.
盈利性
D.
不可替代性
查看完整题目与答案
【单选题】The sound associated with tricuspid stenosis (narrowing) in a 40-year-old male would be best heard at which location on the anterior chest wall?
A.
Below the left nipple
B.
In the right 2nd intercostal space near the sternum
C.
Over the apex of the heart
D.
Over the sternal angle
E.
Xiphoid area, just off the sternum
查看完整题目与答案
【多选题】企业资产所具有的特征是(    )。
A.
资产都是企业所拥有的
B.
资产是企业拥有或控制的
C.
资产能够为企业带来预期经济利益
D.
资产都是企业在过去发生的交易事项所形成的
E.
资产是企业在过去和当前以及未来发生的交易事项中获得的
查看完整题目与答案
【多选题】以下体现勤学的选项有( )。
A.
韦编三绝
B.
悬梁刺股
C.
凿壁借光
D.
囊萤映雪
查看完整题目与答案
【简答题】横向一体化能够为企业带来的战略利益有哪些?
查看完整题目与答案
【单选题】Which of the following causes decreased renin release by the kidneys?
A.
Narrowing (stenosis) of the renal artery
B.
Intravenous infusion of isotonic saline
C.
Decreased fluid and solute delivery to the macula densa
D.
Hemorrhage
E.
Stimulation of renal sympathetic nerves
查看完整题目与答案
【单选题】A 59-year-old woman with type II diabetes mellitus experiences an episode of chest pain with exercise. On examination, her BMI is 30. Angiography reveals proximal coronary arterial narrowing with up t...
A.
Acetaminophen
B.
Aspirin
C.
Ibuprofen
D.
Paclitaxel
E.
Propranolol
查看完整题目与答案
【单选题】A 59-year-old woman with type II diabetes mellitus experiences an episode of chest pain with exercise. On ex- amination, her BMI is 30. Angiography reveals proximal coronary arterial narrowing with up...
A.
Acetaminophen
B.
Aspirin
C.
Ibuprofen
D.
Paclitaxel
E.
Propranolo
查看完整题目与答案
【单选题】A 7-year-old boy is referred to the endocrine clinic with short stature, rhizomelic shortening of the arms and legs, a disproportionately long trunk, trident hands, midfacial hypoplasia, prominent for...
A.
Decreased bone deposition under the periosteum
B.
Decreased proliferation of osteoblasts in the primary ossification center
C.
Decreased proliferation of osteoblasts in the secondary ossification center
D.
Decreased appositional growth of chondroblasts in the primary ossification center
E.
Decreased interstitial growth of chondroblasts in the epiphyses
查看完整题目与答案
【单选题】The term for a narrowing of the bicuspid valve is:
A.
atrial prolapse
B.
pulmonic stenosis
C.
mitral stenosis
D.
mitral prolapse
查看完整题目与答案
相关题目：
【多选题】企业的核心竞争力是指能够为企业带来相对于竞争对手的竞争优势的资源和能力。企业在分析资源时，要想从中提炼出企业的核心竞争力，需要关注资源的（ ）。
A.
稀缺性
B.
不可模仿性
C.
盈利性
D.
不可替代性
查看完整题目与答案
【单选题】The sound associated with tricuspid stenosis (narrowing) in a 40-year-old male would be best heard at which location on the anterior chest wall?
A.
Below the left nipple
B.
In the right 2nd intercostal space near the sternum
C.
Over the apex of the heart
D.
Over the sternal angle
E.
Xiphoid area, just off the sternum
查看完整题目与答案
【多选题】企业资产所具有的特征是(    )。
A.
资产都是企业所拥有的
B.
资产是企业拥有或控制的
C.
资产能够为企业带来预期经济利益
D.
资产都是企业在过去发生的交易事项所形成的
E.
资产是企业在过去和当前以及未来发生的交易事项中获得的
查看完整题目与答案
【多选题】以下体现勤学的选项有( )。
A.
韦编三绝
B.
悬梁刺股
C.
凿壁借光
D.
囊萤映雪
查看完整题目与答案
【简答题】横向一体化能够为企业带来的战略利益有哪些?
查看完整题目与答案
【单选题】Which of the following causes decreased renin release by the kidneys?
A.
Narrowing (stenosis) of the renal artery
B.
Intravenous infusion of isotonic saline
C.
Decreased fluid and solute delivery to the macula densa
D.
Hemorrhage
E.
Stimulation of renal sympathetic nerves
查看完整题目与答案
【单选题】A 59-year-old woman with type II diabetes mellitus experiences an episode of chest pain with exercise. On examination, her BMI is 30. Angiography reveals proximal coronary arterial narrowing with up t...
A.
Acetaminophen
B.
Aspirin
C.
Ibuprofen
D.
Paclitaxel
E.
Propranolol
查看完整题目与答案
【单选题】A 59-year-old woman with type II diabetes mellitus experiences an episode of chest pain with exercise. On ex- amination, her BMI is 30. Angiography reveals proximal coronary arterial narrowing with up...
A.
Acetaminophen
B.
Aspirin
C.
Ibuprofen
D.
Paclitaxel
E.
Propranolo
查看完整题目与答案
【单选题】A 7-year-old boy is referred to the endocrine clinic with short stature, rhizomelic shortening of the arms and legs, a disproportionately long trunk, trident hands, midfacial hypoplasia, prominent for...
A.
Decreased bone deposition under the periosteum
B.
Decreased proliferation of osteoblasts in the primary ossification center
C.
Decreased proliferation of osteoblasts in the secondary ossification center
D.
Decreased appositional growth of chondroblasts in the primary ossification center
E.
Decreased interstitial growth of chondroblasts in the epiphyses
查看完整题目与答案
【单选题】The term for a narrowing of the bicuspid valve is:
A.
atrial prolapse
B.
pulmonic stenosis
C.
mitral stenosis
D.
mitral prolapse
查看完整题目与答案
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