[单选题] 作业中遇钩提不开，制动软管未摘，或钩位不正，钩销不良等情况时，应（ ）处理。
A.上车
B.停车
C.禁止

案情：
某市公安局于1999年1月4日对刘某(男，24岁)、张某(男，21岁)持刀抢劫致人重伤一案立案侦查。经侦查查明，刘某、张某实施抢劫犯罪事实清楚，依法应当追究刑事责任。刘某、张某抢劫案于 1999年3月30日侦查终结，移送市人民检察院审查起诉。市人民检察院审查后，认为该案部分事实、证据尚需补充侦查，遂退回市公安局补充侦查。补充侦查完毕，再次移送市人民检察院。市人民检察院认为事实清楚、证据充分，遂向市人民法院提起公诉。 法院审理过程中，被告人刘某当庭拒绝法院为其指定的辩护人为其辩护，要求自行委托辩护人；张某拒绝其自行委托的辩护人为其辩护，要求法院为其指定一辩护人。合议庭经研究，同意二被告请求，并宣布延期审理。重新开庭后，张某在最后陈述中提出，其参与抢劫是由于刘某的胁迫，由于害怕刘某报复，以前一直不敢说，并提出了可以证明被胁迫参与抢劫的证人的姓名，希望法院从轻判处。 法庭审理后认为，被告人张某、刘某构成抢劫罪，后果严重。根据刑法有关规定，判处刘某死刑，缓期 2年执行；判处张某有期徒刑10年。一审判决后，刘某不服，以量刑过重为由向上一级法院提出上诉；张某未上诉，市人民检察院亦未抗诉。
问题：

Passage Three
There is a popular belief among parents that schools are no longer interested in spelling. No school I have taught in has ever ignored spelling or considered it unimportant as a basic skill. There are, however, vastly different ideas about how to teach it, or how much priority (优先) it must be given over general language development and writing ability. The problem is how to encourage a child to express himself freely and confidently in writing without holding him back with the complexities of spelling.
If spelling becomes the only focal point of his teacher’s interest, clearly a bright child will be likely to "play safe." He will tend to write only words within his spelling range, choosing to avoid adventurous language. That’s why teachers often encourage the early use of dictionaries and pay attention to content rather than technical ability.
I was once shocked to read on the bottom of a sensitive piece of writin
A. the difficulties in teaching spelling
B. the role of spelling in general language development
C. the complexities of the basic writing skills
D. the necessity of teaching spelling