1

2 “...Mobile commerce is a promising market both for consumers and businesses. However, consumer troubles...”

3 “... solve some troubles: the complex lignocellulosic structure needs to be deconstructed by pretreatments...”

4 “... classification and better match pay to market rates, particularly in areas where the public sector has trouble...”

5 “... troubling questions about whether most workers will be able to acquire the skills they need as these new...”

6 “... to preserving and sharing technology throughout the centuries. Trouble ensues. The station is evacuated...”