在研究产品方案的同时，应结合考虑主要原材料、燃料及( )的供应来源及其供应的可靠性和稳定性。
A. 燃气
B. 关键配套件
C. 物料
D. 其它装置
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If the indemnity Art6mis has from the CDR is valid,______.
A. Mr. Pinault won't be able to pay for his fraud
B. the indemnity might still be opposed by French taxpayers
C. Mr. Pinault will face a bill of up to $1 billion
D. it'll be proved true that Mr. Pinault took part in a fraud
结肠手术前准备哪项是不必要的
A. 术前5～7日，进低渣饮食
B. 术前2 日，进全流食
C. 术前2 日，口服缓泻剂和肠道杀菌剂
D. 术前晚清洁灌肠，手术日晨再灌一次
E. 术前3日用抗生素
顿咳痉咳期呕吐、胁痛，其病机是
A. 肝火上逆
B. 肝失疏泄
C. 邪陷心肝
D. 胃气上逆
E. 邪郁化火
Teaching students of threshold level is hard but the effort is very______ to all of us.
A. significant
B. rewarding
C. repayable
D. hardy
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