目前微型机外形常见有如下几种式样:()、()和()。
参考答案:卧式;立式;便携式
矿用防爆柴油机车工作时表面温度不得超过()°C。
A、100
B、120
C、150
NASA is casting a wider net in the space shuttle investigation as to what caused the spacecraft to swing out of control and () moments before it was to land.
A. disassemble
B. disembark
C. disintegrate
D. disinherit