Candidates who pass the examination and pass the physical examination will be admitted. 
If the employees of Unit A go to Guangzhou on business and go alone, they will all take the high-speed rail. Therefore, if Xiao Wu of Unit A goes to Guangzhou on business, but does not take the high-speed rail, then he must not go alone.
 if Li Ming passes the exam but is not admitted, he must fail the physical examination.