Manyothernewtechniquesarenowavailablethatenablemoreresearch___(do)inthetesttubetoseeifchemicalsproduceharmfulbiologicaleffects.
Shehasnohostilitytous,_____canbejudgedfromhereyes
一个质点同时在几个力作用下的位移为．Δr=4i-5j(SI)，其中某个力为F=-3f(SI)，则此力在位移过程中所做的功为
Criticsshouldbeasobjectiveaspossibleintheir_(analyze)ofliteraryworks
依法解除劳动合同是劳动者的权利
