Fusible plugs are installed in fire-tube boilers to （）.
Fusible plugs are installed in fire-tube boilers to （）.
Which following structure belong(s) to the oviduct structure? A: Infundibulum of uterine tube B: Fimbriae of uterine tube C: Ampulla of uterine tube D: Isthmus of uterine tube E: Abdominal orifice of uterine tube
Which following structure belong(s) to the oviduct structure? A: Infundibulum of uterine tube B: Fimbriae of uterine tube C: Ampulla of uterine tube D: Isthmus of uterine tube E: Abdominal orifice of uterine tube
tube
tube
（）接头用于Tube管和Tube管之间的连接。
（）接头用于Tube管和Tube管之间的连接。
Tube Crossing
Tube Crossing
"The fire is in Main Street." John said to the man, "The New Hotel is _________." A: on fire B: in fire C: by fire D: at fire
"The fire is in Main Street." John said to the man, "The New Hotel is _________." A: on fire B: in fire C: by fire D: at fire
【单选题】With the strange clouds, the heaven seemed to be ______________. A. on the fire B. on fire C. in the fire D. in fire
【单选题】With the strange clouds, the heaven seemed to be ______________. A. on the fire B. on fire C. in the fire D. in fire
vacuum<br/>tube ______
vacuum<br/>tube ______
coil tube with fins
coil tube with fins
Lily’s house is _________. A: On fire B: on the fire C: burn D: in fire
Lily’s house is _________. A: On fire B: on the fire C: burn D: in fire