结构动力特性参数与外荷载无关。( )

未分类题The phrase 'make a grab'(Line 5, Para. 4)is closest in meaning to______.A．realize huge profitsB．make a great changeC．face a fierce competitionD．take collective actions

未分类题What do we know about mother-reared rhesus monkeys?A．They only stay with their peers until the age of six months.B．They are not easily frightened by strange people and events.C．Their brain and body chemistry may be remarkably changed.D．They abuse or ignore their offspring when becoming mothers.

判断题预制板和梁等受弯构件一般是简支的，在试验安装时采用异位试验。( )

未分类题It can be inferred from Paragraphs 1 and 2 that______.A．human beings can control the environmentB．we are actually not a unique species as we thought ofC．research on monkeys provides enlightenment to humansD．monkeys are usually reared without love and mother care

判断题专设温度补偿应变计时，补偿块材料与试件材料可不同。( )