病毒性脑炎患者实验室检查可见血白细胞总数降低，脑脊液检查压力增高，白细胞和(或)蛋白质轻度增高，糖、氯化物正常。()
参考答案：错
请根据括号中的中文提示、英文释义或句意，写出句中所缺单词，使句子通顺。
小题1:Do you have any difficulty (解决) the problem?
小题2:Thank you for giving us some __________(建议) which are so valuable to us.
小题3:I doubt ____________(if) he will attend the meeting tomorrow.
小题4: Plenty of pop stars (take part in) the presentation last week.
小题5:Mr. John received an expensive birthday gift from his friends, but he decides not to it.
在高氟地区口腔检查时发现，某人右上前牙牙釉质有广泛白色不透明区，但不超过牙面的50%，若此颗牙以Dean氟牙症分类系统标准记分应为
A．0
B．0.5
C．1
D．2
E．3
