【单选题】A V-shaped ripple with the point of the V pointing upstream in a river may indicate a _____.
A.
submerged rock, not dangerous to navigation
B.
broken wreck, not dangerous to navigation
【单选题】医疗机构需要使用麻醉药品和第一类精神药品
A.
应当经所在地区的市级人民政府卫生主管部门批准,取得麻醉药品、第一类精神药品购用印鉴卡
B.
应当经所在地省、自治区、直辖市食品药品监督管理部门批准,向定点批发企业或者定点生产企业购买
C.
应当向所在地省、自治区、直辖市人民政府药品监督管理部门报送年度需求计划,由省、自治区、直辖市人民政府药品监督管理部门汇总报国务院药品监督管理部门批准后,向定点生产企业购买
D.
应当经所在地省、自治区、直辖市人民政府批准,向定点批发企业或者定点生产企业购买
E.
应当将年度需求计划报所在地省、自治区、直辖市人民政府药品监督管理部门,并向定点批发企业或者定点生产企业购买
【单选题】A multimeter with a range of 50 V and a minimum scale of 1 V was applied to measure the voltage of a resistance in a circuit. The accuracy class of the multimeter was 1. The measured voltages were 20....
【单选题】When a given op-amp has a common-mode input of 10 V, the output of the device is 10 V. When the device has a differential input of 2 mV, the output of the device is 10 V. What is the CMPR of the devi...
【多选题】旅游团队导游服务集体中的全陪、地陪、领队协作共事的基础是他们拥有共同的( )。
【单选题】单选(3分)导游服务团队的工作对象是 。
【单选题】The benefit of measuring the initial rate of a reaction V 0 is that, at the beginning of a reaction:
A.
[ES] can be measured accurately.
B.
changes in [S] are negligible, so [S] can be treated as a constant.
C.
changes in K m are negligible, so K m can be treated as a constant.
E.
varying [S] has no effect on V 0 .