【单选题】Crankshafts of medium speed engines are _____ from a single piece of steel.
A.
unusually solid welded
C.
almost invariably solid forged
D.
almost invariably be welded
【单选题】Medium-speed engines have the following advantages except____.
A.
medium-speed engines use less oil than slow-speed engines.
B.
medium-speed engines of later type are capable of burning low quality heavy fuel oil.
C.
the engines have long stroke which improve engine efficiency.
D.
the engines are compact, thus providing more spaces for cargoes and passengers.
【单选题】Medium speed engines have the following advantages except _______.
A.
medium speed engines use less oil than slow speed engines.
B.
Medium speed engines of later type are capable of burning low quality heavy fuel oil.
C.
The engines have long strokes which improve engine efficiency
D.
The engines are compact. Thus providing more spaces for cargoes and passengers.
【判断题】越野花纹的凹部浅而粗,在软路面上与地面附着性好,越野能力强。( )
【单选题】羚羊角的来源是 Saiga tatarica L.雄性的角。
【简答题】银行本票的结算 资料: 2014 年 7 月 18 日上海昌盛实业有限公司(法人郑明,上海农业银行 B 支行,账号 333333 )到银行签发一张 390 000 元的银行本票,用于从上海宝祥电子有限公司(法人丁玲,上海建设银行 C 支行,账号 222222 )购买原材料。 要求: (1) 以上海昌盛实业有限公司身份完成银行本票申请书的填制。(见表 6-37 ) (2) 简单陈述资料中银行本票的结...
【单选题】反映了春秋战国时期医学成就的一本重要医著是
【判断题】越野花纹的凹部浅而粗,在软路面上与地面附着性好,越野能力强。( )