随着轰隆隆一声巨响,天地分开了,其中()徐徐的上升,变成蓝蓝的天空,()则沉沉下降,变成了大地。
参考答案:轻而清的阳气;重而浊的阴气
________ she couldn’t understand was ________ fewer and fewer students showed interest in her lessons.
A.What;why
B.That;what
C.What;because
D.Why;that
引起肾盂肾炎最多见的致病菌是()。
A.大肠杆菌
B.副大肠杆菌
C.变形杆菌
D.葡萄球菌
E.粪链球菌