【单选题】一家珠宝店的珠宝被盗,经查可以肯定是甲、乙、丙、丁中的某一个人所为。审讯中,甲说:“我不是罪犯。”乙说;“丁是罪犯。”丙说:“乙是罪犯。”丁说:“我不是罪犯。”经调查证实四人中只有一个人说的是真话。 根据已知条件,下列哪个判断为真?( )
【判断题】原子荧光光谱仪的光电倍增管对可见光无反应,因此可以把仪器安装在日光直射或光亮处。
【判断题】蛋白质变性过程中,因肽键的断裂导致其一级结构发生改变
【单选题】氯化物检查时,为了清除CO 3 2 - 、PO 4 3- 、SO 3 2- 等离子的干扰通常加入的酸是
【单选题】I prefer a flat in Inverness to _____ in Perth, because I want to live near my mom's. [ ]
【判断题】散茶喜温燥、忌冷湿,制好的新茶如果保存不当,就会破坏茶汤的色香味,所以贮茶具在明清两代尤为重要。
【单选题】Next, you can make sure to sleep with your hair down, instead of up in a tight ponytail. In addition, you should replace your tight bands with a soft one that isn’t going to roughly pull at night. ___...
A.
Finally, never skip out on applying product.
B.
Here are some tips that can help dry any hair faster.
C.
This unnecessarily adds time to your morning routine.
D.
If you haven’t noticed, the ends of your hair tend to dry first.
E.
You can’t predict how your wet hair is going to look in the morning.
F.
But have you ever thought about the risks of sleeping with wet hair?
【单选题】40年前的中国铁路运营里程仅有5万公里,如今,中国铁路运营里程达到12.7万公里,其中高铁()公里,占全球高铁总里程的( )以上。