【单选题】下列关于健康的说法正确的是
D.
健康包括身体上、心理上和社会适应方面的良好状态
【单选题】每日容许摄入量(I)指的是( )。
A.
允许正常成人每日由外环境摄入体内的化学物质的总量
C.
允许正常成人每日由外环境摄入体内的有效营养物质的量
D.
允许正常成人每日由体内合成的有效营养物质的量
【单选题】下列关于健康的说法正确的是
B.
健康具有连续性,从理想健康到疾病是个逐渐变化的连续过程
【单选题】听力原文:M: When are you leaving for France? W: Well, I don't know. It's difficult to get the visa. Q: What does the woman mean? (14)
A.
She doesn't want to go to France.
B.
She doesn't want to get the visa.
C.
She's not sure when she can leave for France.
D.
She doesn't know how to get the visa.
【简答题】舞台上常用液态氮制造烟雾效果,当液态氮喷洒到舞台上面以后会迅速______,在这一过程中要______热,使舞台台面附近的空气骤然降温,空气中的______会______成小水珠悬浮在空气中,造成云、雾的效果.
【单选题】They're contacting with a potential partner in France.
【判断题】BPB是指BIOS参数块,位于DBR偏移0BH处,偏移15H处是每簇扇区数。( )
【判断题】以下灯光投射到桌面是添加的体积雾大气效果。