How many factors of 2020 have more than 3 factors?(As an example,12 has 6 factors,namely 1,2,3,4,6,and 12.)( )2020的因数中,大于3的有几个?(例如,12有6个因数,即1,2,3,4,6和12。)( ) A. 6 B. 7 C. 8 D. 9 E. 10 相关知识点: 试题来源: 解析 解:2020的因数有(2+1...
(As an example, 12 has 6 factors, namely 1, 2, 3, 4, 6, and 12.)( ).A.6B.7C.8D.9E.10 答案 B相关推荐 1How many factors of 2020 have more than 3 factors?(As an example, 12 has 6 factors, namely 1, 2, 3, 4, 6, and 12.)( ).A.6B.7C.8D.9E.10 反馈 收藏 ...
Human factors issues in implementation of advanced aviation technologies: a case of false alerts and cockpit displays of traffic information This paper provides a framework for identifying and evaluating the human performance implications of new avionics technology such as the cockpit display of... LISA...
This research may help understand the influencing factors of PM2.5 and O3 and provide scientific guide for abatement policies. Moreover, the good consistency in the results obtained from DLNMs and CMAQ indicated the reliability of the two models....
Similar increasing trends were observed in current blunt use among female students (APC = 14.92%), middle schoolers (19.57%), and non-Hispanic (NH) white students (APC = 11.12%) from 2016 to 2020. Several factors were consistently associated with greater odds of both past and current blunt...
Objective To explore the early failure of narrow-diameter implants (NDIs) and to provide a reference for clinical implant restoration. Methods From April 2017 to April 2020, data from a total of 725 patien
Cardiometabolic diseases (CMDs) are a major cause of mortality worldwide, yet men and women present remarkable differences in disease prognosis, onset and manifestation. Here we characterize how sex differences in cardiometabolic risk factors vary with a
被引量: 0发表: 2020年 HIV seroprevalence, self-reported STIs and associated risk factors among men who have sex with men: A cross-sectional study in Rwanda, 2015 In many populations, men who have sex with men (MSM) are at a high risk of HIV infection. This study aimed to estimate th...
The purpose of this study was to analyze myopic regression after corneal refractive surgery (CRS) in civilian pilots and to explore the factors that may cause long-term myopic regression. Methods We included civilian pilots who had undergone CRS to correct their myopia and who had at least 5 ...
China has the second highest number of TB cases in the world, with an estimated incidence rate of 59/100,000 in 2020 [3]. The Chinese government has been providing free treatment to TB patients under the Directly Observed Treatment Short-course (DOTS) programme, on the recommendation of the...