【判断题】图示简支梁,当 F P1 = 1 , F P2 = 0 时, 1 点的挠度为 0.0165 l 3 / EI , 2 点的挠度为 0.077 l 3 / EI 。当 F P1 = 0 , F P2 = 1 时,则 1 点的挠度为 0.021 l 3 / EI (其中 F P1 作用在 l / 4 处, F P2 作用在 l / 2 处)。
【判断题】图示简支梁,当 F P1 =1 , F P2 =0 时, 1 点的挠度为 0.0165 l 3 / EI , 2 点挠度为 0.077 l 3 / EI 。当 F P1 =0 , F P2 =1 时,则 1 点的挠度为 0.021 l 3 / EI (其中 F P1 作用在 l /4 处, F P2 作用在 l /2 处)。( )
【单选题】【D10】 INTERVIEWER: HOW LONG DID YOU LIVE IN THE STATES? INTERVIEWEE: I WAS THERE FOR TWO YEARS, IN NEW YORK, AND I ENJOYED IT TREMENDOUSLY. WHAT I LIKED BEST WAS THAT I COULD WORK AND STILL LEAD A NOR...
A.
NATIONALITIES STAY IN THEIR OWN AREAS
B.
PEOPLE DON'T QUEUE LIKE THEY DO HERE IN ENGLAN D.
C.
CULTURES VARY FROM COUNTRY TO COUNTRY.
D.
SOME SUPERMARKETS ARE OPEN TWENTY-FOUR HOURS A DAY.