[单选]
On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

A . time estimating
B . cost estimating
C . project planning
D . schedule development

男性，20岁，发现高血压2年，血压在（180～220）／（110～130）mmHg，尿蛋白（++），尿素氮11.5mmol/L，血肌酐5mg／L，心电图示左室肥厚劳损，最可能的诊断是（）高血压病3级。肾性高血压。高血压危象。高血压病1级。急进性高血压。女性，30岁，咳嗽，咳黄脓痰3天。查体：双肺呼吸音粗，胸片示双肺纹理粗乱，诊断急性气管-支气管炎已行痰培养+药敏检查，在结果报告之前，不常选用的抗生素是（） A.红霉素。青霉素。妥布霉素。头孢克洛。左氧氟沙星。男性，70岁，活动中突发右侧肢体活动不利，口角右偏，言语不清，血压220/130mmHg，头颅CT显示左侧底节区脑出血，下列说法哪项是正确的（）静脉使用降压药物使血压在2小时降至正常水平。适当降压使血压不低于160/100mmHg。严密监测下尽快使血压降至正常。血压控制目标为小于160／100mmHg。不必降压治疗以防进一步减少脑组织血流灌注。对于原发性高血压病病人的降压治疗，下述哪项是不对的（）除危重病例外，降压药物从小剂量开始。病人需要长期用药。血压降至正常时，即可停药。首选第一线降压药物。根据个体化原则选用降压药物。男性，25岁，咳嗽，咳黄脓痰伴胸闷3天。查体：双肺散在干啰音为明确诊断，仍需的检查是（） A.胸片。心电图。肺功能。肝功能。血气分析。

On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

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[单选] On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.

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[单选]
On some projects, especially ones of smaller scope, activity sequencing, activity resource estimating, activity duration estimating, and （） are so tightly linked that they are viewed as a single process that can be performed by a person over a relatively short period of time.