—Simon, what do I need to take for the hiking?
—You'd better ________ more water than usual. It's hot today.
A:to take
B:take
C:taking
D:took
对“比例尺①:1:500”和“比例尺②: ”的描述正确的是( )
待:dāi ____ dài____
咽:yàn____ yān____
丧:sāng____ sàng____
①上皮组织 ②肌肉组织 ③结缔组织 ④神经组织.
句子翻译:把下面的句子翻译成英文。