单选题 The speaker claimed that (no other) modem nation devotes (so small) a portion of its wealth to public assistance and health (than) the United States (does).
【正确答案】 C
【答案解析】 than 改为 as。前面是so small．．．，用的是原级比较；所以后面必须与as搭配；than与比较级搭配。