现行《中小学校教室采光和照明卫生标准》规定,黑板面的平均照度不低于()。
A.150lx
B.160lx
C.200lx
D.100lx
E.180lx
参考答案:C
—I saw Jane and her boyfriend in the park at eight yesterday evening.
—Impossible. She __________ TV with me in my home then.
A.watched
B.had watched
C.would watch
D.was watching
患儿7个月,发热,咳嗽、流涕3d。查体:精神萎靡,结膜充血,咽赤,两侧颊黏膜充血,上见针尖大小灰白色斑点,该患儿可能的诊断是
A.麻疹
B.风疹
C.幼儿急疹
D.猩红热
E.上呼吸道感染