地震发生时,要保持清醒,头脑冷静,就地避险,不可冒然外逃,可选择安全的地方避险,有()
A.阳台
B.牢固的桌子底下
C.开间小的卫生间
D.内墙墙角
参考答案:B, C, D
锥虫感染宿主后常可引起哪些疾病()
A.锥虫下疳
B.出现广泛的淋巴结肿大、脾充血肿大
C.睡眠病
D.贫血
E.象皮肿
You ______ this place without my permission.[ ]
A. are not to leave
B. are not leaving
C. will not leave
D. are not going to leave