母亲产生的长时间不良情绪对胎儿的身体和精神会产生影响。
12. void start() { 13. A a = new A(); 14. B b = new B(); 15. a.s(b); 16. b = null; 17. a = null; 18. System.out.println(“start completed”); 19. } When is the B object, created in line 14, eligible for garbage collection?() [" After line 16."," After line 17."," After line 18 (when the methods ends)."," There is no way to be absolutely certain."," The object is NOT eligible for garbage collection."]
‘美誉天下,创造价值’是长安的()理念。 ["品牌理念","市场理念","服务理念","供应理念"]
学前儿童心理学是阐明学前儿童心理的特征和各种心理过程的发展趋势及心理发展变化的机制。
被称为“高原之舟”的是() ["骆驼","牦牛","马"]
地表水资源可利用量