题目：According to the passage，the greatest challenge to the new high-speed railway plan is ．
A．technical issues
B．safety of the system
C．financial problems
D．maintenance of railway tracks
喵查答案：C
According to the passage，the greatest challenge to the new high-speed railway plan is ．
-
She stared at the painting, wondering where sheit. -
根据原文内容，下列理解和分析不正确的一项是 -
What information can parents probably get about their children at family dinner (no more than 12 words) -
联系全文，概况本文主旨。（6分）
- She stared at the painting, wondering where sheit.
- 根据原文内容，下列理解和分析不正确的一项是
- What information can parents probably get about their children at family dinner (no more than 12 words)
- 联系全文，概况本文主旨。（6分）
- （4）除植酸酶外，微生物还应用在 _________________________ 的生产中。
- 第二节 短文改错（共10小题，每小题1.5分，满分15分）
- 某蛋白质由m条肽链、n个氨基酸组成。该蛋白质至少有氧原子的个数是
- 下列各组句子中，加点词的意义和用法不同的一组是（ ）（参考改编绍兴一中期末调研卷）