For London, the disaster was the Great Smog of ( ).

3D printing technology can also be called ( ). A: Additive Manufacturing B: Dislodge Forming C: Forced Forming D: Constrained Forming

Which one belongs to chronic inflammation() A: London smog incident B: asthmatic attack C: Photochemical smog incident D: Bphopal disaster

2. What words the blend smog are formed？

They are at the end of their food . A: supply B: smog C: media D: pressure

3D printing technology can also be called ( ). A: Additive Manufacturing B: removal forming C: extrusion molding D: constrained forming

We learn from the third paragraph that ______. A: London was plagued with rats in the 1950s B: London is covered with smog today C: London was polluted by smog in the 1950s D: Los Angeles is as heavily polluted today as London was in the 1950s

What words the blend smog are formed？ A: smoke+log B: smoke+fog C: smike+fog D: smike+log

Which of the following words is formed by means of blending? A: expo B: OPEC C: smog D: daydream

is a process of forming a new word by combining parts of two words. A: