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Any strikes and class boycotts will deal a further blow to the city's economy, which has already been hard-hit by the COVID-19 pandemic, the statement said.

Another area where fracture mechanics plays a vital role is gas and oil pipelines, he said.

Announcements from the New York-led group of East Coast governors, and a similar compact formed by California, Oregon and Washington state, came after President Donald Trump declared that any decision on restarting the US economy was up to him.

Apart from limiting the amount of homework, the guideline also limits the time and difficulty of school exams, forbids schools from making grades and class rankings public and prevents after-school training institutions from engaging in exam-oriented training or hiring teachers from public schools.

Another expected outcome of the Kenyan president's visit to Shanghai will be the signing of an MOU for the establishment of a trade negotiation working group whose mandate will be to negotiate trade tariffs especially on Kenya's tea and coffee exports to China as well as explore additional market for the country's cash crops.