影响出租汽车安全运营的客观因素有哪些?
参考答案:
交通环境;车辆性能;道路状况;天气变化。
127. The South African student always keeps in touch with his family by e-mail and never _____ to write to his mother.
A.fades
B.declines
C.fails
D.Succeeds
小儿急性阑尾炎是小儿腹部外科常见的急腹症,其临床特点中,不正确的是().
A.发病前常有上呼吸道感染、扁桃体炎或肠炎等诱发因素
B.明显的转移性右下腹痛
C.盲肠位置较高,活动度大,腹痛和触痛范围较广
D.腹壁薄,腹肌弱,故腹肌紧张不明显
E.阑尾壁薄,易发生穿孔,大网膜短,炎症不易局限,故确诊后应考虑手术