核的形成是造球的第一步。因此，核的强度及形成的（）都影响到生球的质量。
A
暂无解析
重写句子：Whenwearerelievedofworkingpressuresoftheoffice,wecanenjoyhappinessandrelaxationathome.(modifyingphrase)
重写句子：Weslippedontheroadwhenwecouldseenolightsintheheavyrainthatnight.(periodicsentence)
Ifanearthquakeoccurred，someoftheone-storeyhouses________.
Theypreferto_______therestofthemorningwalkinginthegarden.
Theyareeager_______abroad.