Some Democrats think their party's agonising selection process will produce a battle-hardened nominee backed by legions of fired-up supporters. 有些民主党人认为这一场令人痛苦的初选会产生一个实战考验过的候选人，以及无数斗志高昂的支持者。
Analysis of Salt-tolerant Characteristics and Primary Selection of Its Salt-tolerant Variants from Tube Plants of TriploidPopulus tomentosaCarr. 毛白杨耐盐性分析及耐盐植株初选。
